27086489 has 2 divisors, whose sum is σ = 27086490. Its totient is φ = 27086488.

The previous prime is 27086443. The next prime is 27086497. The reversal of 27086489 is 98468072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24552025 + 2534464 = 4955^2 + 1592^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27086489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27088489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13543244 + 13543245.

It is an arithmetic number, because the mean of its divisors is an integer number (13543245).

Almost surely, 2^27086489 is an apocalyptic number.

It is an amenable number.

27086489 is a deficient number, since it is larger than the sum of its proper divisors (1).

27086489 is an equidigital number, since it uses as much as digits as its factorization.

27086489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 27086489 is about 5204.4681764807. The cubic root of 27086489 is about 300.3199882001.

The spelling of 27086489 in words is "twenty-seven million, eighty-six thousand, four hundred eighty-nine".