47865990 has 32 divisors (see below), whose sum is σ = 119874816. Its totient is φ = 12209120.

The previous prime is 47865989. The next prime is 47866001. The reversal of 47865990 is 9956874.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33996 + ... + 35375.

It is an arithmetic number, because the mean of its divisors is an integer number (3746088).

Almost surely, 2^47865990 is an apocalyptic number.

47865990 is an abundant number, since it is smaller than the sum of its proper divisors (72008826).

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

47865990 is a wasteful number, since it uses less digits than its factorization.

47865990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69404.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 47865990 is about 6918.5251318471. The cubic root of 47865990 is about 363.0855917588.

The spelling of 47865990 in words is "forty-seven million, eight hundred sixty-five thousand, nine hundred ninety".