647250434 has 16 divisors (see below), whose sum is σ = 985400640. Its totient is φ = 318806160.

The previous prime is 647250431. The next prime is 647250451. The reversal of 647250434 is 434052746.

It is a junction number, because it is equal to n+sod(n) for n = 647250394 and 647250403.

It is not an unprimeable number, because it can be changed into a prime (647250431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54164 + ... + 65024.

It is an arithmetic number, because the mean of its divisors is an integer number (61587540).

Almost surely, 2^647250434 is an apocalyptic number.

647250434 is a deficient number, since it is larger than the sum of its proper divisors (338150206).

647250434 is a wasteful number, since it uses less digits than its factorization.

647250434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11305.

The product of its (nonzero) digits is 80640, while the sum is 35.

The square root of 647250434 is about 25441.1169959182. The cubic root of 647250434 is about 865.0159525720.

The spelling of 647250434 in words is "six hundred forty-seven million, two hundred fifty thousand, four hundred thirty-four".