64064615 has 8 divisors (see below), whose sum is σ = 77085888. Its totient is φ = 51112800.

The previous prime is 64064573. The next prime is 64064617. The reversal of 64064615 is 51646046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64064615 - 2⁸ = 64064359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64064617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15311 + ... + 19040.

It is an arithmetic number, because the mean of its divisors is an integer number (9635736).

Almost surely, 2^64064615 is an apocalyptic number.

64064615 is a deficient number, since it is larger than the sum of its proper divisors (13021273).

64064615 is a wasteful number, since it uses less digits than its factorization.

64064615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34729.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 64064615 is about 8004.0374187031. The cubic root of 64064615 is about 400.1345693060.

The spelling of 64064615 in words is "sixty-four million, sixty-four thousand, six hundred fifteen".