674825564 has 24 divisors (see below), whose sum is σ = 1358256480. Its totient is φ = 287366976.

The previous prime is 674825561. The next prime is 674825579. The reversal of 674825564 is 465528476.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674825561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72359 + ... + 81150.

It is an arithmetic number, because the mean of its divisors is an integer number (56594020).

Almost surely, 2^674825564 is an apocalyptic number.

It is an amenable number.

674825564 is an abundant number, since it is smaller than the sum of its proper divisors (683430916).

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

674825564 is a wasteful number, since it uses less digits than its factorization.

674825564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153677 (or 153675 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 47.

The square root of 674825564 is about 25977.4048742364. The cubic root of 674825564 is about 877.1297514044.

The spelling of 674825564 in words is "six hundred seventy-four million, eight hundred twenty-five thousand, five hundred sixty-four".