27300391 has 2 divisors, whose sum is σ = 27300392. Its totient is φ = 27300390.

The previous prime is 27300389. The next prime is 27300407. The reversal of 27300391 is 19300372.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27300391 - 2¹ = 27300389 is a prime.

It is a super-2 number, since 2×27300391² = 1490622697505762, which contains 22 as substring.

Together with 27300389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27300331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13650195 + 13650196.

It is an arithmetic number, because the mean of its divisors is an integer number (13650196).

Almost surely, 2^27300391 is an apocalyptic number.

27300391 is a deficient number, since it is larger than the sum of its proper divisors (1).

27300391 is an equidigital number, since it uses as much as digits as its factorization.

27300391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 27300391 is about 5224.9776076075. The cubic root of 27300391 is about 301.1084586134.

The spelling of 27300391 in words is "twenty-seven million, three hundred thousand, three hundred ninety-one".