577161628 has 12 divisors (see below), whose sum is σ = 1069446672. Its totient is φ = 271605440.

The previous prime is 577161623. The next prime is 577161643. The reversal of 577161628 is 826161775.

It is a super-2 number, since 2×577161628² = 666231089671220768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (577161623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4243768 + ... + 4243903.

It is an arithmetic number, because the mean of its divisors is an integer number (89120556).

Almost surely, 2^577161628 is an apocalyptic number.

It is an amenable number.

577161628 is a deficient number, since it is larger than the sum of its proper divisors (492285044).

577161628 is a wasteful number, since it uses less digits than its factorization.

577161628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8487692 (or 8487690 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 577161628 is about 24024.1883941997. The cubic root of 577161628 is about 832.5924785518.

The spelling of 577161628 in words is "five hundred seventy-seven million, one hundred sixty-one thousand, six hundred twenty-eight".