47879115 has 16 divisors (see below), whose sum is σ = 76788000. Its totient is φ = 25475072.

The previous prime is 47879113. The next prime is 47879129. The reversal of 47879115 is 51197874.

It is a cyclic number.

It is not a de Polignac number, because 47879115 - 2¹ = 47879113 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (47879113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3181 + ... + 10289.

It is an arithmetic number, because the mean of its divisors is an integer number (4799250).

Almost surely, 2^47879115 is an apocalyptic number.

47879115 is a deficient number, since it is larger than the sum of its proper divisors (28908885).

47879115 is a wasteful number, since it uses less digits than its factorization.

47879115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7566.

The product of its digits is 70560, while the sum is 42.

The square root of 47879115 is about 6919.4736071467. The cubic root of 47879115 is about 363.1187751171.

The spelling of 47879115 in words is "forty-seven million, eight hundred seventy-nine thousand, one hundred fifteen".