557704 has 32 divisors (see below), whose sum is σ = 1249920. Its totient is φ = 228096.

The previous prime is 557693. The next prime is 557717. The reversal of 557704 is 407755.

557704 is nontrivially palindromic in base 16.

557704 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a super-2 number, since 2×557704² = 622067503232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

557704 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072 + ... + 1504.

It is an arithmetic number, because the mean of its divisors is an integer number (39060).

2⁵⁵⁷⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624960).

557704 is an abundant number, since it is smaller than the sum of its proper divisors (692216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557704 is a wasteful number, since it uses less digits than its factorization.

557704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 557704 is about 746.7958221629. The cubic root of 557704 is about 82.3129032268.

The spelling of 557704 in words is "five hundred fifty-seven thousand, seven hundred four".