27948928 has 32 divisors (see below), whose sum is σ = 63635760. Its totient is φ = 11977728.

The previous prime is 27948923. The next prime is 27948929. The reversal of 27948928 is 82984972.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×27948928² = 1562285152698368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27948923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14701 + ... + 16492.

Almost surely, 2^27948928 is an apocalyptic number.

27948928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27948928 is an abundant number, since it is smaller than the sum of its proper divisors (35686832).

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

27948928 is an equidigital number, since it uses as much as digits as its factorization.

27948928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31214 (or 31202 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 27948928 is about 5286.6745691408. The cubic root of 27948928 is about 303.4741602124.

The spelling of 27948928 in words is "twenty-seven million, nine hundred forty-eight thousand, nine hundred twenty-eight".