27394457 has 2 divisors, whose sum is σ = 27394458. Its totient is φ = 27394456.

The previous prime is 27394453. The next prime is 27394501. The reversal of 27394457 is 75449372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24049216 + 3345241 = 4904^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 27394457 - 2² = 27394453 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27394453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13697228 + 13697229.

It is an arithmetic number, because the mean of its divisors is an integer number (13697229).

Almost surely, 2^27394457 is an apocalyptic number.

It is an amenable number.

27394457 is a deficient number, since it is larger than the sum of its proper divisors (1).

27394457 is an equidigital number, since it uses as much as digits as its factorization.

27394457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 27394457 is about 5233.9714366817. The cubic root of 27394457 is about 301.4538944393.

The spelling of 27394457 in words is "twenty-seven million, three hundred ninety-four thousand, four hundred fifty-seven".