47223990 has 48 divisors (see below), whose sum is σ = 133947216. Its totient is φ = 11448000.

The previous prime is 47223989. The next prime is 47224003. The reversal of 47223990 is 9932274.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22861 + ... + 24840.

It is an arithmetic number, because the mean of its divisors is an integer number (2790567).

Almost surely, 2^47223990 is an apocalyptic number.

47223990 is an abundant number, since it is smaller than the sum of its proper divisors (86723226).

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

47223990 is a wasteful number, since it uses less digits than its factorization.

47223990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47725 (or 47722 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 47223990 is about 6871.9713328855. The cubic root of 47223990 is about 361.4549911538.

The spelling of 47223990 in words is "forty-seven million, two hundred twenty-three thousand, nine hundred ninety".