577422 has 48 divisors (see below), whose sum is σ = 1399920. Its totient is φ = 176256.

The previous prime is 577399. The next prime is 577427. The reversal of 577422 is 224775.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (577427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15588 + ... + 15624.

It is an arithmetic number, because the mean of its divisors is an integer number (29165).

2⁵⁷⁷⁴²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 577422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699960).

577422 is an abundant number, since it is smaller than the sum of its proper divisors (822498).

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

577422 is a wasteful number, since it uses less digits than its factorization.

577422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 59 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 577422 is about 759.8828857133. The cubic root of 577422 is about 83.2717660804.

It can be divided in two parts, 577 and 422, that added together give a palindrome (999).

The spelling of 577422 in words is "five hundred seventy-seven thousand, four hundred twenty-two".