27312497 has 2 divisors, whose sum is σ = 27312498. Its totient is φ = 27312496.

The previous prime is 27312479. The next prime is 27312517. The reversal of 27312497 is 79421372.

Together with previous prime (27312479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25969216 + 1343281 = 5096^2 + 1159^2 .

It is a cyclic number.

It is not a de Polignac number, because 27312497 - 2²⁰ = 26263921 is a prime.

It is not a weakly prime, because it can be changed into another prime (27312097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13656248 + 13656249.

It is an arithmetic number, because the mean of its divisors is an integer number (13656249).

Almost surely, 2^27312497 is an apocalyptic number.

It is an amenable number.

27312497 is a deficient number, since it is larger than the sum of its proper divisors (1).

27312497 is an equidigital number, since it uses as much as digits as its factorization.

27312497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 27312497 is about 5226.1359530728. The cubic root of 27312497 is about 301.1529595673.

The spelling of 27312497 in words is "twenty-seven million, three hundred twelve thousand, four hundred ninety-seven".