47931113 has 6 divisors (see below), whose sum is σ = 49641774. Its totient is φ = 46277504.

The previous prime is 47931101. The next prime is 47931127. The reversal of 47931113 is 31113974.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 14845609 + 33085504 = 3853^2 + 5752^2 .

It is not a de Polignac number, because 47931113 - 2⁶ = 47931049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47931193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27656 + ... + 29337.

It is an arithmetic number, because the mean of its divisors is an integer number (8273629).

Almost surely, 2^47931113 is an apocalyptic number.

It is an amenable number.

47931113 is a deficient number, since it is larger than the sum of its proper divisors (1710661).

47931113 is an equidigital number, since it uses as much as digits as its factorization.

47931113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57051 (or 57022 counting only the distinct ones).

The product of its digits is 2268, while the sum is 29.

The square root of 47931113 is about 6923.2299542916. The cubic root of 47931113 is about 363.2501797942.

The spelling of 47931113 in words is "forty-seven million, nine hundred thirty-one thousand, one hundred thirteen".