647053408 has 24 divisors (see below), whose sum is σ = 1274517720. Its totient is φ = 323366400.

The previous prime is 647053399. The next prime is 647053471. The reversal of 647053408 is 804350746.

It is a super-2 number, since 2×647053408² = 837356225608828928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86023 + ... + 93241.

It is an arithmetic number, because the mean of its divisors is an integer number (53104905).

Almost surely, 2^647053408 is an apocalyptic number.

It is an amenable number.

647053408 is a deficient number, since it is larger than the sum of its proper divisors (627464312).

647053408 is a wasteful number, since it uses less digits than its factorization.

647053408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10030 (or 10022 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 647053408 is about 25437.2445048594. The cubic root of 647053408 is about 864.9281720570.

The spelling of 647053408 in words is "six hundred forty-seven million, fifty-three thousand, four hundred eight".