47163990 has 32 divisors (see below), whose sum is σ = 114094080. Its totient is φ = 12477024.

The previous prime is 47163979. The next prime is 47164049. The reversal of 47163990 is 9936174.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2380 + ... + 9999.

It is an arithmetic number, because the mean of its divisors is an integer number (3565440).

Almost surely, 2^47163990 is an apocalyptic number.

47163990 is an abundant number, since it is smaller than the sum of its proper divisors (66930090).

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

47163990 is a wasteful number, since it uses less digits than its factorization.

47163990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12516.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 47163990 is about 6867.6043858102. The cubic root of 47163990 is about 361.3018451869.

The spelling of 47163990 in words is "forty-seven million, one hundred sixty-three thousand, nine hundred ninety".