677577213 has 12 divisors (see below), whose sum is σ = 979103008. Its totient is φ = 451542600.

The previous prime is 677577209. The next prime is 677577227. The reversal of 677577213 is 312775776.

677577213 is a `hidden beast` number, since 6 + 77 + 577 + 2 + 1 + 3 = 666.

It is not a de Polignac number, because 677577213 - 2² = 677577209 is a prime.

It is a super-2 number, since 2×677577213² = 918221759153694738, 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 (677577293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12456 + ... + 38862.

Almost surely, 2^677577213 is an apocalyptic number.

It is an amenable number.

677577213 is a deficient number, since it is larger than the sum of its proper divisors (301525795).

677577213 is a wasteful number, since it uses less digits than its factorization.

677577213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29264 (or 29261 counting only the distinct ones).

The product of its digits is 432180, while the sum is 45.

The square root of 677577213 is about 26030.3133480948. The cubic root of 677577213 is about 878.3203208716.

The spelling of 677577213 in words is "six hundred seventy-seven million, five hundred seventy-seven thousand, two hundred thirteen".