27973297 has 4 divisors (see below), whose sum is σ = 30516336. Its totient is φ = 25430260.

The previous prime is 27973291. The next prime is 27973303. The reversal of 27973297 is 79237972.

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 an interprime number because it is at equal distance from previous prime (27973291) and next prime (27973303).

It is a cyclic number.

It is not a de Polignac number, because 27973297 - 2³ = 27973289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27973291) 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, 1271503 + ... + 1271524.

It is an arithmetic number, because the mean of its divisors is an integer number (7629084).

Almost surely, 2^27973297 is an apocalyptic number.

It is an amenable number.

27973297 is a deficient number, since it is larger than the sum of its proper divisors (2543039).

27973297 is a wasteful number, since it uses less digits than its factorization.

27973297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543038.

The product of its digits is 333396, while the sum is 46.

The square root of 27973297 is about 5288.9788239319. The cubic root of 27973297 is about 303.5623354904.

The spelling of 27973297 in words is "twenty-seven million, nine hundred seventy-three thousand, two hundred ninety-seven".