64714915 has 4 divisors (see below), whose sum is σ = 77657904. Its totient is φ = 51771928.

The previous prime is 64714891. The next prime is 64714943. The reversal of 64714915 is 51941746.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51941746 = 2 ⋅25970873.

It is a cyclic number.

It is not a de Polignac number, because 64714915 - 2¹¹ = 64712867 is a prime.

It is a Duffinian 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, 6471487 + ... + 6471496.

It is an arithmetic number, because the mean of its divisors is an integer number (19414476).

Almost surely, 2^64714915 is an apocalyptic number.

64714915 is a deficient number, since it is larger than the sum of its proper divisors (12942989).

64714915 is a wasteful number, since it uses less digits than its factorization.

64714915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12942988.

The product of its digits is 30240, while the sum is 37.

The square root of 64714915 is about 8044.5580984912. The cubic root of 64714915 is about 401.4838945850.

The spelling of 64714915 in words is "sixty-four million, seven hundred fourteen thousand, nine hundred fifteen".