646327325 has 12 divisors (see below), whose sum is σ = 915938400. Its totient is φ = 443195760.

The previous prime is 646327307. The next prime is 646327349. The reversal of 646327325 is 523723646.

It is a happy number.

It is not a de Polignac number, because 646327325 - 2⁸ = 646327069 is a prime.

It is a super-2 number, since 2×646327325² = 835478022083311250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1846475 + ... + 1846824.

It is an arithmetic number, because the mean of its divisors is an integer number (76328200).

Almost surely, 2^646327325 is an apocalyptic number.

It is an amenable number.

646327325 is a deficient number, since it is larger than the sum of its proper divisors (269611075).

646327325 is a wasteful number, since it uses less digits than its factorization.

646327325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693316 (or 3693311 counting only the distinct ones).

The product of its digits is 181440, while the sum is 38.

The square root of 646327325 is about 25422.9684537428. The cubic root of 646327325 is about 864.6045281429.

The spelling of 646327325 in words is "six hundred forty-six million, three hundred twenty-seven thousand, three hundred twenty-five".