27988275 has 48 divisors (see below), whose sum is σ = 53568000. Its totient is φ = 12629760.

The previous prime is 27988237. The next prime is 27988291. The reversal of 27988275 is 57288972.

It is not a de Polignac number, because 27988275 - 2¹² = 27984179 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46426 + ... + 47024.

It is an arithmetic number, because the mean of its divisors is an integer number (1116000).

Almost surely, 2^27988275 is an apocalyptic number.

27988275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27988275 is a deficient number, since it is larger than the sum of its proper divisors (25579725).

27988275 is a wasteful number, since it uses less digits than its factorization.

27988275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 703 counting only the distinct ones).

The product of its digits is 564480, while the sum is 48.

The square root of 27988275 is about 5290.3945977592. The cubic root of 27988275 is about 303.6165055488.

The spelling of 27988275 in words is "twenty-seven million, nine hundred eighty-eight thousand, two hundred seventy-five".