47131868 has 24 divisors (see below), whose sum is σ = 94588032. Its totient is φ = 20129904.

The previous prime is 47131831. The next prime is 47131879. The reversal of 47131868 is 86813174.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5855 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (3941168).

Almost surely, 2^47131868 is an apocalyptic number.

It is an amenable number.

47131868 is an abundant number, since it is smaller than the sum of its proper divisors (47456164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47131868 is a wasteful number, since it uses less digits than its factorization.

47131868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801 (or 5799 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 47131868 is about 6865.2653262638. The cubic root of 47131868 is about 361.2198025548.

The spelling of 47131868 in words is "forty-seven million, one hundred thirty-one thousand, eight hundred sixty-eight".