647670675 has 36 divisors (see below), whose sum is σ = 1137547976. Its totient is φ = 325094400.

The previous prime is 647670637. The next prime is 647670691. The reversal of 647670675 is 576076746.

It is not a de Polignac number, because 647670675 - 2¹¹ = 647668627 is a prime.

It is a super-4 number, since 4×647670675⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6735 + ... + 36615.

Almost surely, 2^647670675 is an apocalyptic number.

647670675 is a deficient number, since it is larger than the sum of its proper divisors (489877301).

647670675 is a wasteful number, since it uses less digits than its factorization.

647670675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29928 (or 29906 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 48.

The square root of 647670675 is about 25449.3747467398. The cubic root of 647670675 is about 865.2031220224.

The spelling of 647670675 in words is "six hundred forty-seven million, six hundred seventy thousand, six hundred seventy-five".