27012091 has 4 divisors (see below), whose sum is σ = 28433800. Its totient is φ = 25590384.

The previous prime is 27012023. The next prime is 27012103. The reversal of 27012091 is 19021072.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27012091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27042091) 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, 710826 + ... + 710863.

It is an arithmetic number, because the mean of its divisors is an integer number (7108450).

Almost surely, 2^27012091 is an apocalyptic number.

27012091 is a deficient number, since it is larger than the sum of its proper divisors (1421709).

27012091 is a wasteful number, since it uses less digits than its factorization.

27012091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421708.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 27012091 is about 5197.3157494999. The cubic root of 27012091 is about 300.0447747985.

The spelling of 27012091 in words is "twenty-seven million, twelve thousand, ninety-one".