47405928 has 32 divisors (see below), whose sum is σ = 125487360. Its totient is φ = 14872320.

The previous prime is 47405879. The next prime is 47405929. The reversal of 47405928 is 82950474.

It is not an unprimeable number, because it can be changed into a prime (47405929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57688 + ... + 58503.

It is an arithmetic number, because the mean of its divisors is an integer number (3921480).

Almost surely, 2^47405928 is an apocalyptic number.

It is an amenable number.

47405928 is an abundant number, since it is smaller than the sum of its proper divisors (78081432).

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

47405928 is a wasteful number, since it uses less digits than its factorization.

47405928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116217 (or 116213 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 47405928 is about 6885.1962934981. The cubic root of 47405928 is about 361.9185840937.

The spelling of 47405928 in words is "forty-seven million, four hundred five thousand, nine hundred twenty-eight".