47571117 has 32 divisors (see below), whose sum is σ = 77137920. Its totient is φ = 25701120.

The previous prime is 47571113. The next prime is 47571127. The reversal of 47571117 is 71117574.

It is not a de Polignac number, because 47571117 - 2² = 47571113 is a prime.

It is a super-2 number, since 2×47571117² = 4526022345255378, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47571113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8428 + ... + 12890.

It is an arithmetic number, because the mean of its divisors is an integer number (2410560).

Almost surely, 2^47571117 is an apocalyptic number.

It is an amenable number.

47571117 is a deficient number, since it is larger than the sum of its proper divisors (29566803).

47571117 is a wasteful number, since it uses less digits than its factorization.

47571117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513.

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

The square root of 47571117 is about 6897.1818157853. The cubic root of 47571117 is about 362.3384729424.

The spelling of 47571117 in words is "forty-seven million, five hundred seventy-one thousand, one hundred seventeen".