47031768 has 72 divisors (see below), whose sum is σ = 148185180. Its totient is φ = 13436640.

The previous prime is 47031737. The next prime is 47031769. The reversal of 47031768 is 86713074.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47031769) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3138 + ... + 10193.

Almost surely, 2^47031768 is an apocalyptic number.

It is an amenable number.

47031768 is an abundant number, since it is smaller than the sum of its proper divisors (101153412).

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

47031768 is a wasteful number, since it uses less digits than its factorization.

47031768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13357 (or 13343 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 47031768 is about 6857.9711285482. The cubic root of 47031768 is about 360.9638983447.

The spelling of 47031768 in words is "forty-seven million, thirty-one thousand, seven hundred sixty-eight".