47872131 has 8 divisors (see below), whose sum is σ = 66604800. Its totient is φ = 30527112.

The previous prime is 47872093. The next prime is 47872151. The reversal of 47872131 is 13127874.

It is a happy number.

47872131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 47872131 - 2⁶ = 47872067 is a prime.

It is a super-2 number, since 2×47872131² = 4583481852962322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47872092 and 47872101.

It is not an unprimeable number, because it can be changed into a prime (47872151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346831 + ... + 346968.

It is an arithmetic number, because the mean of its divisors is an integer number (8325600).

Almost surely, 2^47872131 is an apocalyptic number.

47872131 is a deficient number, since it is larger than the sum of its proper divisors (18732669).

47872131 is a wasteful number, since it uses less digits than its factorization.

47872131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693825.

The product of its digits is 9408, while the sum is 33.

The square root of 47872131 is about 6918.9689260756. The cubic root of 47872131 is about 363.1011185332.

The spelling of 47872131 in words is "forty-seven million, eight hundred seventy-two thousand, one hundred thirty-one".