27085391 has 4 divisors (see below), whose sum is σ = 28019400. Its totient is φ = 26151384.

The previous prime is 27085381. The next prime is 27085411. The reversal of 27085391 is 19358072.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27085391 - 2⁶ = 27085327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27085381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466961 + ... + 467018.

It is an arithmetic number, because the mean of its divisors is an integer number (7004850).

Almost surely, 2^27085391 is an apocalyptic number.

27085391 is a deficient number, since it is larger than the sum of its proper divisors (934009).

27085391 is an equidigital number, since it uses as much as digits as its factorization.

27085391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934008.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 27085391 is about 5204.3626891292. The cubic root of 27085391 is about 300.3159301400.

The spelling of 27085391 in words is "twenty-seven million, eighty-five thousand, three hundred ninety-one".