647085627 has 12 divisors (see below), whose sum is σ = 950522040. Its totient is φ = 424078368.

The previous prime is 647085623. The next prime is 647085643. The reversal of 647085627 is 726580746.

It is not a de Polignac number, because 647085627 - 2² = 647085623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (647085623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608778 + ... + 609839.

It is an arithmetic number, because the mean of its divisors is an integer number (79210170).

Almost surely, 2^647085627 is an apocalyptic number.

647085627 is a deficient number, since it is larger than the sum of its proper divisors (303436413).

647085627 is a wasteful number, since it uses less digits than its factorization.

647085627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218682 (or 1218679 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 647085627 is about 25437.8778006342. The cubic root of 647085627 is about 864.9425277284.

The spelling of 647085627 in words is "six hundred forty-seven million, eighty-five thousand, six hundred twenty-seven".