27230691 has 4 divisors (see below), whose sum is σ = 36307592. Its totient is φ = 18153792.

The previous prime is 27230677. The next prime is 27230699. The reversal of 27230691 is 19603272.

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

It is not a de Polignac number, because 27230691 - 2⁵ = 27230659 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (27230699) 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, 4538446 + ... + 4538451.

It is an arithmetic number, because the mean of its divisors is an integer number (9076898).

Almost surely, 2^27230691 is an apocalyptic number.

27230691 is a deficient number, since it is larger than the sum of its proper divisors (9076901).

27230691 is an equidigital number, since it uses as much as digits as its factorization.

27230691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9076900.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 27230691 is about 5218.3034599379. The cubic root of 27230691 is about 300.8519892019.

The spelling of 27230691 in words is "twenty-seven million, two hundred thirty thousand, six hundred ninety-one".