27379577 has 2 divisors, whose sum is σ = 27379578. Its totient is φ = 27379576.

The previous prime is 27379543. The next prime is 27379579. The reversal of 27379577 is 77597372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27290176 + 89401 = 5224^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 27379577 - 2²⁰ = 26331001 is a prime.

Together with 27379579, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27379579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13689788 + 13689789.

It is an arithmetic number, because the mean of its divisors is an integer number (13689789).

Almost surely, 2^27379577 is an apocalyptic number.

It is an amenable number.

27379577 is a deficient number, since it is larger than the sum of its proper divisors (1).

27379577 is an equidigital number, since it uses as much as digits as its factorization.

27379577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648270, while the sum is 47.

The square root of 27379577 is about 5232.5497608718. The cubic root of 27379577 is about 301.3993037563.

The spelling of 27379577 in words is "twenty-seven million, three hundred seventy-nine thousand, five hundred seventy-seven".