47591871 has 32 divisors (see below), whose sum is σ = 68290560. Its totient is φ = 29428224.

The previous prime is 47591849. The next prime is 47591893. The reversal of 47591871 is 17819574.

It is an interprime number because it is at equal distance from previous prime (47591849) and next prime (47591893).

It is not a de Polignac number, because 47591871 - 2¹⁵ = 47559103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47591801) 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, 421111 + ... + 421223.

It is an arithmetic number, because the mean of its divisors is an integer number (2134080).

Almost surely, 2^47591871 is an apocalyptic number.

47591871 is a deficient number, since it is larger than the sum of its proper divisors (20698689).

47591871 is a wasteful number, since it uses less digits than its factorization.

47591871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295.

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

The square root of 47591871 is about 6898.6861792663. The cubic root of 47591871 is about 362.3911581277.

The spelling of 47591871 in words is "forty-seven million, five hundred ninety-one thousand, eight hundred seventy-one".