64025646 has 16 divisors (see below), whose sum is σ = 128265600. Its totient is φ = 21306168.

The previous prime is 64025623. The next prime is 64025657. The reversal of 64025646 is 64652046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4906 + ... + 12333.

It is an arithmetic number, because the mean of its divisors is an integer number (8016600).

Almost surely, 2^64025646 is an apocalyptic number.

64025646 is an abundant number, since it is smaller than the sum of its proper divisors (64239954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64025646 is a wasteful number, since it uses less digits than its factorization.

64025646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17863.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 64025646 is about 8001.6027144566. The cubic root of 64025646 is about 400.0534220316.

The spelling of 64025646 in words is "sixty-four million, twenty-five thousand, six hundred forty-six".