647232315 has 16 divisors (see below), whose sum is σ = 1039910400. Its totient is φ = 343744352.

The previous prime is 647232263. The next prime is 647232319. The reversal of 647232315 is 513232746.

It is a cyclic number.

It is not a de Polignac number, because 647232315 - 2⁸ = 647232059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (647232319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86685 + ... + 93854.

It is an arithmetic number, because the mean of its divisors is an integer number (64994400).

Almost surely, 2^647232315 is an apocalyptic number.

647232315 is a deficient number, since it is larger than the sum of its proper divisors (392678085).

647232315 is a wasteful number, since it uses less digits than its factorization.

647232315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180786.

The product of its digits is 30240, while the sum is 33.

The square root of 647232315 is about 25440.7608966399. The cubic root of 647232315 is about 865.0078808018.

The spelling of 647232315 in words is "six hundred forty-seven million, two hundred thirty-two thousand, three hundred fifteen".