27113591 has 4 divisors (see below), whose sum is σ = 27211752. Its totient is φ = 27015432.

The previous prime is 27113549. The next prime is 27113599. The reversal of 27113591 is 19531172.

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-27113591 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 (27113599) 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, 48665 + ... + 49218.

It is an arithmetic number, because the mean of its divisors is an integer number (6802938).

Almost surely, 2^27113591 is an apocalyptic number.

27113591 is a deficient number, since it is larger than the sum of its proper divisors (98161).

27113591 is an equidigital number, since it uses as much as digits as its factorization.

27113591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98160.

The product of its digits is 1890, while the sum is 29.

The square root of 27113591 is about 5207.0712497526. The cubic root of 27113591 is about 300.4201188001.

The spelling of 27113591 in words is "twenty-seven million, one hundred thirteen thousand, five hundred ninety-one".