27947428 has 12 divisors (see below), whose sum is σ = 49497840. Its totient is φ = 13805192.

The previous prime is 27947419. The next prime is 27947441. The reversal of 27947428 is 82474972.

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, 41758 + ... + 42421.

It is an arithmetic number, because the mean of its divisors is an integer number (4124820).

Almost surely, 2^27947428 is an apocalyptic number.

It is an amenable number.

27947428 is a deficient number, since it is larger than the sum of its proper divisors (21550412).

27947428 is a wasteful number, since it uses less digits than its factorization.

27947428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84266 (or 84264 counting only the distinct ones).

The product of its digits is 225792, while the sum is 43.

The square root of 27947428 is about 5286.5327011189. The cubic root of 27947428 is about 303.4687310312.

The spelling of 27947428 in words is "twenty-seven million, nine hundred forty-seven thousand, four hundred twenty-eight".