577996639 has 16 divisors (see below), whose sum is σ = 652367520. Its totient is φ = 507520000.

The previous prime is 577996613. The next prime is 577996649. The reversal of 577996639 is 936699775.

It is a cyclic number.

It is not a de Polignac number, because 577996639 - 2¹⁵ = 577963871 is a prime.

It is a super-2 number, since 2×577996639² = 668160229390592642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (577996649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39207 + ... + 51895.

It is an arithmetic number, because the mean of its divisors is an integer number (40772970).

Almost surely, 2^577996639 is an apocalyptic number.

577996639 is a deficient number, since it is larger than the sum of its proper divisors (74370881).

577996639 is a wasteful number, since it uses less digits than its factorization.

577996639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12842.

The product of its digits is 19289340, while the sum is 61.

The square root of 577996639 is about 24041.5606606560. The cubic root of 577996639 is about 832.9938039581.

The spelling of 577996639 in words is "five hundred seventy-seven million, nine hundred ninety-six thousand, six hundred thirty-nine".