64075715 has 16 divisors (see below), whose sum is σ = 84948480. Its totient is φ = 46007520.

The previous prime is 64075709. The next prime is 64075717. The reversal of 64075715 is 51757046.

It is not a de Polignac number, because 64075715 - 2²⁴ = 47298499 is a prime.

It is a super-2 number, since 2×64075715² = 8211394505522450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64075717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3029 + ... + 11718.

It is an arithmetic number, because the mean of its divisors is an integer number (5309280).

Almost surely, 2^64075715 is an apocalyptic number.

64075715 is a deficient number, since it is larger than the sum of its proper divisors (20872765).

64075715 is a wasteful number, since it uses less digits than its factorization.

64075715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14842.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 64075715 is about 8004.7307887274. The cubic root of 64075715 is about 400.1576774197.

The spelling of 64075715 in words is "sixty-four million, seventy-five thousand, seven hundred fifteen".