47395431 has 6 divisors (see below), whose sum is σ = 68460080. Its totient is φ = 31596948.

The previous prime is 47395423. The next prime is 47395451. The reversal of 47395431 is 13459374.

It is not a de Polignac number, because 47395431 - 2³ = 47395423 is a prime.

It is a super-2 number, since 2×47395431² = 4492653759351522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47395421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2633071 + ... + 2633088.

Almost surely, 2^47395431 is an apocalyptic number.

47395431 is a deficient number, since it is larger than the sum of its proper divisors (21064649).

47395431 is a wasteful number, since it uses less digits than its factorization.

47395431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5266165 (or 5266162 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 47395431 is about 6884.4339636603. The cubic root of 47395431 is about 361.8918691520.

The spelling of 47395431 in words is "forty-seven million, three hundred ninety-five thousand, four hundred thirty-one".