662904 has 96 divisors (see below), whose sum is σ = 2096640. Its totient is φ = 194400.

The previous prime is 662899. The next prime is 662917. The reversal of 662904 is 409266.

662904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (27) 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 (27).

It is a congruent number.

It is an unprimeable number.

662904 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21369 + ... + 21399.

It is an arithmetic number, because the mean of its divisors is an integer number (21840).

2⁶⁶²⁹⁰⁴ 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 662904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048320).

662904 is an abundant number, since it is smaller than the sum of its proper divisors (1433736).

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

662904 is a wasteful number, since it uses less digits than its factorization.

662904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 662904 is about 814.1891672087. The cubic root of 662904 is about 87.1933866993.

The spelling of 662904 in words is "six hundred sixty-two thousand, nine hundred four".