64000515 has 16 divisors (see below), whose sum is σ = 102567168. Its totient is φ = 34078176.

The previous prime is 64000499. The next prime is 64000543. The reversal of 64000515 is 51500046.

It is a happy number.

It is not a de Polignac number, because 64000515 - 2⁴ = 64000499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64000491 and 64000500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7122 + ... + 13368.

It is an arithmetic number, because the mean of its divisors is an integer number (6410448).

Almost surely, 2^64000515 is an apocalyptic number.

64000515 is a deficient number, since it is larger than the sum of its proper divisors (38566653).

64000515 is a wasteful number, since it uses less digits than its factorization.

64000515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 64000515 is about 8000.0321874352. The cubic root of 64000515 is about 400.0010729138.

The spelling of 64000515 in words is "sixty-four million, five hundred fifteen", and thus it is an aban number.