577968820 has 48 divisors (see below), whose sum is σ = 1425932928. Its totient is φ = 194002560.

The previous prime is 577968803. The next prime is 577968821. The reversal of 577968820 is 28869775.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (577968821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98184 + ... + 103903.

It is an arithmetic number, because the mean of its divisors is an integer number (29706936).

Almost surely, 2^577968820 is an apocalyptic number.

It is an amenable number.

577968820 is an abundant number, since it is smaller than the sum of its proper divisors (847964108).

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

577968820 is a wasteful number, since it uses less digits than its factorization.

577968820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202120 (or 202118 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

The square root of 577968820 is about 24040.9820930843. The cubic root of 577968820 is about 832.9804397360.

The spelling of 577968820 in words is "five hundred seventy-seven million, nine hundred sixty-eight thousand, eight hundred twenty".