647403752 has 16 divisors (see below), whose sum is σ = 1253040000. Its totient is φ = 313259760.

The previous prime is 647403751. The next prime is 647403761. The reversal of 647403752 is 257304746.

It is not an unprimeable number, because it can be changed into a prime (647403751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1305002 + ... + 1305497.

It is an arithmetic number, because the mean of its divisors is an integer number (78315000).

Almost surely, 2^647403752 is an apocalyptic number.

647403752 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

647403752 is a deficient number, since it is larger than the sum of its proper divisors (605636248).

647403752 is a wasteful number, since it uses less digits than its factorization.

647403752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610536 (or 2610532 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 647403752 is about 25444.1300106724. The cubic root of 647403752 is about 865.0842476443.

The spelling of 647403752 in words is "six hundred forty-seven million, four hundred three thousand, seven hundred fifty-two".