27315291 has 16 divisors (see below), whose sum is σ = 37157120. Its totient is φ = 17845920.

The previous prime is 27315271. The next prime is 27315317. The reversal of 27315291 is 19251372.

It is not a de Polignac number, because 27315291 - 2⁵ = 27315259 is a prime.

It is a super-2 number, since 2×27315291² = 1492250244829362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27315241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33276 + ... + 34086.

It is an arithmetic number, because the mean of its divisors is an integer number (2322320).

Almost surely, 2^27315291 is an apocalyptic number.

27315291 is a deficient number, since it is larger than the sum of its proper divisors (9841829).

27315291 is a wasteful number, since it uses less digits than its factorization.

27315291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026.

The product of its digits is 3780, while the sum is 30.

The square root of 27315291 is about 5226.4032565427. The cubic root of 27315291 is about 301.1632282815.

The spelling of 27315291 in words is "twenty-seven million, three hundred fifteen thousand, two hundred ninety-one".