27540379 has 2 divisors, whose sum is σ = 27540380. Its totient is φ = 27540378.

The previous prime is 27540371. The next prime is 27540413. The reversal of 27540379 is 97304572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27540379 - 2³ = 27540371 is a prime.

It is not a weakly prime, because it can be changed into another prime (27540371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13770189 + 13770190.

It is an arithmetic number, because the mean of its divisors is an integer number (13770190).

Almost surely, 2^27540379 is an apocalyptic number.

27540379 is a deficient number, since it is larger than the sum of its proper divisors (1).

27540379 is an equidigital number, since it uses as much as digits as its factorization.

27540379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 27540379 is about 5247.8928152164. The cubic root of 27540379 is about 301.9881981558.

The spelling of 27540379 in words is "twenty-seven million, five hundred forty thousand, three hundred seventy-nine".