47451864 has 32 divisors (see below), whose sum is σ = 119686320. Its totient is φ = 15676416.

The previous prime is 47451857. The next prime is 47451893. The reversal of 47451864 is 46815474.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6037 + ... + 11460.

Almost surely, 2^47451864 is an apocalyptic number.

It is an amenable number.

47451864 is an abundant number, since it is smaller than the sum of its proper divisors (72234456).

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

47451864 is a wasteful number, since it uses less digits than its factorization.

47451864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17619 (or 17615 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 47451864 is about 6888.5313383914. The cubic root of 47451864 is about 362.0354451827.

The spelling of 47451864 in words is "forty-seven million, four hundred fifty-one thousand, eight hundred sixty-four".