647232955 has 4 divisors (see below), whose sum is σ = 776679552. Its totient is φ = 517786360.

The previous prime is 647232941. The next prime is 647232983. The reversal of 647232955 is 559232746.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 647232955 - 2⁵ = 647232923 is a prime.

It is a Duffinian 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, 64723291 + ... + 64723300.

It is an arithmetic number, because the mean of its divisors is an integer number (194169888).

Almost surely, 2^647232955 is an apocalyptic number.

647232955 is a deficient number, since it is larger than the sum of its proper divisors (129446597).

647232955 is a wasteful number, since it uses less digits than its factorization.

647232955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129446596.

The product of its digits is 453600, while the sum is 43.

The square root of 647232955 is about 25440.7734748769. The cubic root of 647232955 is about 865.0081659158.

The spelling of 647232955 in words is "six hundred forty-seven million, two hundred thirty-two thousand, nine hundred fifty-five".