674639577 has 48 divisors (see below), whose sum is σ = 1096358400. Its totient is φ = 409501440.

The previous prime is 674639573. The next prime is 674639587. The reversal of 674639577 is 775936476.

674639577 is a `hidden beast` number, since 6 + 7 + 4 + 63 + 9 + 577 = 666.

674639577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 674639577 - 2² = 674639573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (674639573) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 240499 + ... + 243287.

It is an arithmetic number, because the mean of its divisors is an integer number (22840800).

Almost surely, 2^674639577 is an apocalyptic number.

It is an amenable number.

674639577 is a deficient number, since it is larger than the sum of its proper divisors (421718823).

674639577 is a wasteful number, since it uses less digits than its factorization.

674639577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863 (or 2840 counting only the distinct ones).

The product of its digits is 6667920, while the sum is 54.

The square root of 674639577 is about 25973.8248434843. The cubic root of 674639577 is about 877.0491628153.

The spelling of 674639577 in words is "six hundred seventy-four million, six hundred thirty-nine thousand, five hundred seventy-seven".