27406039 has 2 divisors, whose sum is σ = 27406040. Its totient is φ = 27406038.

The previous prime is 27406021. The next prime is 27406051. The reversal of 27406039 is 93060472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27406039 - 2⁹ = 27405527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27406039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27406069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13703019 + 13703020.

It is an arithmetic number, because the mean of its divisors is an integer number (13703020).

Almost surely, 2^27406039 is an apocalyptic number.

27406039 is a deficient number, since it is larger than the sum of its proper divisors (1).

27406039 is an equidigital number, since it uses as much as digits as its factorization.

27406039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 27406039 is about 5235.0777453635. The cubic root of 27406039 is about 301.4963719750.

The spelling of 27406039 in words is "twenty-seven million, four hundred six thousand, thirty-nine".