64714515 has 32 divisors (see below), whose sum is σ = 110592000. Its totient is φ = 32242560.

The previous prime is 64714511. The next prime is 64714543. The reversal of 64714515 is 51541746.

64714515 = 991² + 992² + ... + 1052².

It is not a de Polignac number, because 64714515 - 2² = 64714511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64714511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11086 + ... + 15884.

It is an arithmetic number, because the mean of its divisors is an integer number (3456000).

Almost surely, 2^64714515 is an apocalyptic number.

64714515 is a deficient number, since it is larger than the sum of its proper divisors (45877485).

64714515 is a wasteful number, since it uses less digits than its factorization.

64714515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867.

The product of its digits is 16800, while the sum is 33.

The square root of 64714515 is about 8044.5332369256. The cubic root of 64714515 is about 401.4830673986.

The spelling of 64714515 in words is "sixty-four million, seven hundred fourteen thousand, five hundred fifteen".