674640735 has 16 divisors (see below), whose sum is σ = 1079866080. Its totient is φ = 359661440.

The previous prime is 674640719. The next prime is 674640781. The reversal of 674640735 is 537046476.

It is a happy number.

It is not a de Polignac number, because 674640735 - 2⁴ = 674640719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35905 + ... + 51365.

It is an arithmetic number, because the mean of its divisors is an integer number (67491630).

Almost surely, 2^674640735 is an apocalyptic number.

674640735 is a deficient number, since it is larger than the sum of its proper divisors (405225345).

674640735 is a wasteful number, since it uses less digits than its factorization.

674640735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18378.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 674640735 is about 25973.8471351473. The cubic root of 674640735 is about 877.0496646251.

The spelling of 674640735 in words is "six hundred seventy-four million, six hundred forty thousand, seven hundred thirty-five".