47931369 has 8 divisors (see below), whose sum is σ = 65394912. Its totient is φ = 31211040.

The previous prime is 47931361. The next prime is 47931371. The reversal of 47931369 is 96313974.

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

It is not a de Polignac number, because 47931369 - 2³ = 47931361 is a prime.

It is a super-2 number, since 2×47931369² = 4594832268428322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47931369.

It is not an unprimeable number, because it can be changed into a prime (47931361) 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, 185652 + ... + 185909.

It is an arithmetic number, because the mean of its divisors is an integer number (8174364).

Almost surely, 2^47931369 is an apocalyptic number.

It is an amenable number.

47931369 is a deficient number, since it is larger than the sum of its proper divisors (17463543).

47931369 is a wasteful number, since it uses less digits than its factorization.

47931369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371607.

The product of its digits is 122472, while the sum is 42.

The square root of 47931369 is about 6923.2484427471. The cubic root of 47931369 is about 363.2508264993.

The spelling of 47931369 in words is "forty-seven million, nine hundred thirty-one thousand, three hundred sixty-nine".