27974973 has 24 divisors (see below), whose sum is σ = 42415968. Its totient is φ = 16301088.

The previous prime is 27974957. The next prime is 27974981. The reversal of 27974973 is 37947972.

It is a happy number.

It is not a de Polignac number, because 27974973 - 2⁴ = 27974957 is a prime.

It is a super-2 number, since 2×27974973² = 1565198228701458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27974953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13086 + ... + 15072.

It is an arithmetic number, because the mean of its divisors is an integer number (1767332).

Almost surely, 2^27974973 is an apocalyptic number.

It is an amenable number.

27974973 is a deficient number, since it is larger than the sum of its proper divisors (14440995).

27974973 is a wasteful number, since it uses less digits than its factorization.

27974973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041 (or 2022 counting only the distinct ones).

The product of its digits is 666792, while the sum is 48.

The square root of 27974973 is about 5289.1372642426. The cubic root of 27974973 is about 303.5683979424.

The spelling of 27974973 in words is "twenty-seven million, nine hundred seventy-four thousand, nine hundred seventy-three".