47831072 has 24 divisors (see below), whose sum is σ = 94405500. Its totient is φ = 23855104.

The previous prime is 47831059. The next prime is 47831083. The reversal of 47831072 is 27013874.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 47831056 + 16 = 6916^2 + 4^2 .

It is a super-2 number, since 2×47831072² = 4575622897338368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12704 + ... + 16032.

Almost surely, 2^47831072 is an apocalyptic number.

It is an amenable number.

47831072 is a deficient number, since it is larger than the sum of its proper divisors (46574428).

47831072 is a wasteful number, since it uses less digits than its factorization.

47831072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788 (or 3780 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 47831072 is about 6916.0011567379. The cubic root of 47831072 is about 362.9972805742.

The spelling of 47831072 in words is "forty-seven million, eight hundred thirty-one thousand, seventy-two".