47909368 has 32 divisors (see below), whose sum is σ = 100951200. Its totient is φ = 21149568.

The previous prime is 47909359. The next prime is 47909369. The reversal of 47909368 is 86390974.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47909369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7623 + ... + 12406.

It is an arithmetic number, because the mean of its divisors is an integer number (3154725).

Almost surely, 2^47909368 is an apocalyptic number.

It is an amenable number.

47909368 is an abundant number, since it is smaller than the sum of its proper divisors (53041832).

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

47909368 is a wasteful number, since it uses less digits than its factorization.

47909368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20071 (or 20067 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 47909368 is about 6921.6593386268. The cubic root of 47909368 is about 363.1952393497.

The spelling of 47909368 in words is "forty-seven million, nine hundred nine thousand, three hundred sixty-eight".