47428905 has 16 divisors (see below), whose sum is σ = 77319360. Its totient is φ = 24817728.

The previous prime is 47428897. The next prime is 47428933. The reversal of 47428905 is 50982474.

It is not a de Polignac number, because 47428905 - 2³ = 47428897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29035 + ... + 30624.

It is an arithmetic number, because the mean of its divisors is an integer number (4832460).

Almost surely, 2^47428905 is an apocalyptic number.

It is an amenable number.

47428905 is a deficient number, since it is larger than the sum of its proper divisors (29890455).

47428905 is a wasteful number, since it uses less digits than its factorization.

47428905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59720.

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

The square root of 47428905 is about 6886.8646712419. The cubic root of 47428905 is about 361.9770469661.

The spelling of 47428905 in words is "forty-seven million, four hundred twenty-eight thousand, nine hundred five".