47984431 has 16 divisors (see below), whose sum is σ = 53919360. Its totient is φ = 42325920.

The previous prime is 47984389. The next prime is 47984459. The reversal of 47984431 is 13448974.

It is a cyclic number.

It is not a de Polignac number, because 47984431 - 2⁷ = 47984303 is a prime.

It is a super-2 number, since 2×47984431² = 4605011236787522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47984731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108096 + ... + 108538.

It is an arithmetic number, because the mean of its divisors is an integer number (3369960).

Almost surely, 2^47984431 is an apocalyptic number.

47984431 is a deficient number, since it is larger than the sum of its proper divisors (5934929).

47984431 is a wasteful number, since it uses less digits than its factorization.

47984431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726.

The product of its digits is 96768, while the sum is 40.

The square root of 47984431 is about 6927.0795433574. The cubic root of 47984431 is about 363.3848216084.

It can be divided in two parts, 4798 and 4431, that added together give a palindrome (9229).

The spelling of 47984431 in words is "forty-seven million, nine hundred eighty-four thousand, four hundred thirty-one".