47399904 has 60 divisors (see below), whose sum is σ = 139409424. Its totient is φ = 15799104.

The previous prime is 47399903. The next prime is 47399917. The reversal of 47399904 is 40999374.

47399904 is a `hidden beast` number, since 473 + 99 + 90 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 47399904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47399903) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6552 + ... + 11735.

Almost surely, 2^47399904 is an apocalyptic number.

It is an amenable number.

47399904 is an abundant number, since it is smaller than the sum of its proper divisors (92009520).

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

47399904 is a wasteful number, since it uses less digits than its factorization.

47399904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18309 (or 18292 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 47399904 is about 6884.7588193051. The cubic root of 47399904 is about 361.9032534519.

The spelling of 47399904 in words is "forty-seven million, three hundred ninety-nine thousand, nine hundred four".