27971488 has 12 divisors (see below), whose sum is σ = 55068930. Its totient is φ = 13985728.

The previous prime is 27971479. The next prime is 27971497. The reversal of 27971488 is 88417972.

It is an interprime number because it is at equal distance from previous prime (27971479) and next prime (27971497).

It can be written as a sum of positive squares in only one way, i.e., 18558864 + 9412624 = 4308^2 + 3068^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437023 + ... + 437086.

Almost surely, 2^27971488 is an apocalyptic number.

It is an amenable number.

27971488 is a deficient number, since it is larger than the sum of its proper divisors (27097442).

27971488 is an equidigital number, since it uses as much as digits as its factorization.

27971488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874119 (or 874111 counting only the distinct ones).

The product of its digits is 225792, while the sum is 46.

The square root of 27971488 is about 5288.8078051674. The cubic root of 27971488 is about 303.5557916770. Note that the first 3 decimals are identical.

The spelling of 27971488 in words is "twenty-seven million, nine hundred seventy-one thousand, four hundred eighty-eight".