108664715 has 4 divisors (see below), whose sum is σ = 130397664. Its totient is φ = 86931768.

The previous prime is 108664709. The next prime is 108664727. The reversal of 108664715 is 517466801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 517466801 = 6619 ⋅78179.

It is a cyclic number.

It is not a de Polignac number, because 108664715 - 2¹⁰ = 108663691 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, 10866467 + ... + 10866476.

It is an arithmetic number, because the mean of its divisors is an integer number (32599416).

Almost surely, 2^108664715 is an apocalyptic number.

108664715 is a deficient number, since it is larger than the sum of its proper divisors (21732949).

108664715 is an equidigital number, since it uses as much as digits as its factorization.

108664715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21732948.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 108664715 is about 10424.2369025267. The cubic root of 108664715 is about 477.1953265977.

The spelling of 108664715 in words is "one hundred eight million, six hundred sixty-four thousand, seven hundred fifteen".