27090497 has 16 divisors (see below), whose sum is σ = 32243712. Its totient is φ = 22271760.

The previous prime is 27090493. The next prime is 27090509. The reversal of 27090497 is 79409072.

It is a happy number.

It is not a de Polignac number, because 27090497 - 2² = 27090493 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27090497.

It is not an unprimeable number, because it can be changed into a prime (27090491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27068 + ... + 28050.

It is an arithmetic number, because the mean of its divisors is an integer number (2015232).

Almost surely, 2^27090497 is an apocalyptic number.

It is an amenable number.

27090497 is a deficient number, since it is larger than the sum of its proper divisors (5153215).

27090497 is a wasteful number, since it uses less digits than its factorization.

27090497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 27090497 is about 5204.8532159899. The cubic root of 27090497 is about 300.3348002976.

The spelling of 27090497 in words is "twenty-seven million, ninety thousand, four hundred ninety-seven".