47157117 has 8 divisors (see below), whose sum is σ = 71858496. Its totient is φ = 26946912.

The previous prime is 47157109. The next prime is 47157119. The reversal of 47157117 is 71175174.

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

It is not a de Polignac number, because 47157117 - 2³ = 47157109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47157119) 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, 1122768 + ... + 1122809.

It is an arithmetic number, because the mean of its divisors is an integer number (8982312).

Almost surely, 2^47157117 is an apocalyptic number.

It is an amenable number.

47157117 is a deficient number, since it is larger than the sum of its proper divisors (24701379).

47157117 is a wasteful number, since it uses less digits than its factorization.

47157117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245587.

The product of its digits is 6860, while the sum is 33.

The square root of 47157117 is about 6867.1039747480. The cubic root of 47157117 is about 361.2842940268.

It can be divided in two parts, 47157 and 117, that added together give a palindrome (47274).

The spelling of 47157117 in words is "forty-seven million, one hundred fifty-seven thousand, one hundred seventeen".