47913187 has 8 divisors (see below), whose sum is σ = 56238176. Its totient is φ = 39958272.

The previous prime is 47913179. The next prime is 47913199. The reversal of 47913187 is 78131974.

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 47913187 - 2³ = 47913179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47913287) 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, 92238 + ... + 92755.

It is an arithmetic number, because the mean of its divisors is an integer number (7029772).

Almost surely, 2^47913187 is an apocalyptic number.

47913187 is a deficient number, since it is larger than the sum of its proper divisors (8324989).

47913187 is a wasteful number, since it uses less digits than its factorization.

47913187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185037.

The product of its digits is 42336, while the sum is 40.

The square root of 47913187 is about 6921.9352062844. The cubic root of 47913187 is about 363.2048895554.

The spelling of 47913187 in words is "forty-seven million, nine hundred thirteen thousand, one hundred eighty-seven".