64001684 has 12 divisors (see below), whose sum is σ = 112403508. Its totient is φ = 31886400.

The previous prime is 64001657. The next prime is 64001711. The reversal of 64001684 is 48610046.

It is an interprime number because it is at equal distance from previous prime (64001657) and next prime (64001711).

It can be written as a sum of positive squares in 2 ways, for example, as 38093584 + 25908100 = 6172^2 + 5090^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27347 + ... + 29594.

It is an arithmetic number, because the mean of its divisors is an integer number (9366959).

Almost surely, 2^64001684 is an apocalyptic number.

It is an amenable number.

64001684 is a deficient number, since it is larger than the sum of its proper divisors (48401824).

64001684 is a wasteful number, since it uses less digits than its factorization.

64001684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57226 (or 57224 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 64001684 is about 8000.1052493077. The cubic root of 64001684 is about 400.0035083026.

The spelling of 64001684 in words is "sixty-four million, one thousand, six hundred eighty-four".