47428906 has 16 divisors (see below), whose sum is σ = 81570816. Its totient is φ = 20260656.

The previous prime is 47428897. The next prime is 47428933. The reversal of 47428906 is 60982474.

It is a super-2 number, since 2×47428906² = 4499002248713672, which contains 22 as substring.

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, 906 + ... + 9781.

It is an arithmetic number, because the mean of its divisors is an integer number (5098176).

Almost surely, 2^47428906 is an apocalyptic number.

47428906 is a deficient number, since it is larger than the sum of its proper divisors (34141910).

47428906 is a wasteful number, since it uses less digits than its factorization.

47428906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11013.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 47428906 is about 6886.8647438439. The cubic root of 47428906 is about 361.9770495101.

The spelling of 47428906 in words is "forty-seven million, four hundred twenty-eight thousand, nine hundred six".