47123904 has 28 divisors (see below), whose sum is σ = 124682504. Its totient is φ = 15707904.

The previous prime is 47123899. The next prime is 47123953. The reversal of 47123904 is 40932174.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122527 + ... + 122910.

Almost surely, 2^47123904 is an apocalyptic number.

It is an amenable number.

47123904 is an abundant number, since it is smaller than the sum of its proper divisors (77558600).

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

47123904 is a wasteful number, since it uses less digits than its factorization.

47123904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245452 (or 245442 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 47123904 is about 6864.6852804772. The cubic root of 47123904 is about 361.1994559777.

The spelling of 47123904 in words is "forty-seven million, one hundred twenty-three thousand, nine hundred four".