27974481 has 4 divisors (see below), whose sum is σ = 37299312. Its totient is φ = 18649652.

The previous prime is 27974477. The next prime is 27974483. The reversal of 27974481 is 18447972.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27974481 - 2² = 27974477 is a prime.

It is a super-2 number, since 2×27974481² = 1565143174438722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27974483) 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, 4662411 + ... + 4662416.

It is an arithmetic number, because the mean of its divisors is an integer number (9324828).

Almost surely, 2^27974481 is an apocalyptic number.

It is an amenable number.

27974481 is a deficient number, since it is larger than the sum of its proper divisors (9324831).

27974481 is an equidigital number, since it uses as much as digits as its factorization.

27974481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9324830.

The product of its digits is 112896, while the sum is 42.

The square root of 27974481 is about 5289.0907536173. The cubic root of 27974481 is about 303.5666182978.

The spelling of 27974481 in words is "twenty-seven million, nine hundred seventy-four thousand, four hundred eighty-one".