47664115 has 4 divisors (see below), whose sum is σ = 57196944. Its totient is φ = 38131288.

The previous prime is 47664083. The next prime is 47664121. The reversal of 47664115 is 51146674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51146674 = 2 ⋅25573337.

It is a cyclic number.

It is not a de Polignac number, because 47664115 - 2⁵ = 47664083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4766407 + ... + 4766416.

It is an arithmetic number, because the mean of its divisors is an integer number (14299236).

Almost surely, 2^47664115 is an apocalyptic number.

47664115 is a deficient number, since it is larger than the sum of its proper divisors (9532829).

47664115 is an equidigital number, since it uses as much as digits as its factorization.

47664115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9532828.

The product of its digits is 20160, while the sum is 34.

The square root of 47664115 is about 6903.9202631548. The cubic root of 47664115 is about 362.5744341799.

The spelling of 47664115 in words is "forty-seven million, six hundred sixty-four thousand, one hundred fifteen".