64715099 has 8 divisors (see below), whose sum is σ = 67081728. Its totient is φ = 62389800.

The previous prime is 64715093. The next prime is 64715117. The reversal of 64715099 is 99051746.

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

It is a cyclic number.

It is not a de Polignac number, because 64715099 - 2²⁰ = 63666523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64715093) 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, 7127 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (8385216).

Almost surely, 2^64715099 is an apocalyptic number.

64715099 is a deficient number, since it is larger than the sum of its proper divisors (2366629).

64715099 is a wasteful number, since it uses less digits than its factorization.

64715099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20665.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 64715099 is about 8044.5695347856. The cubic root of 64715099 is about 401.4842750896.

The spelling of 64715099 in words is "sixty-four million, seven hundred fifteen thousand, ninety-nine".