27396913 has 4 divisors (see below), whose sum is σ = 27407728. Its totient is φ = 27386100.

The previous prime is 27396899. The next prime is 27396931. The reversal of 27396913 is 31969372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27396913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27396953) 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, 670 + ... + 7432.

It is an arithmetic number, because the mean of its divisors is an integer number (6851932).

Almost surely, 2^27396913 is an apocalyptic number.

It is an amenable number.

27396913 is a deficient number, since it is larger than the sum of its proper divisors (10815).

27396913 is an equidigital number, since it uses as much as digits as its factorization.

27396913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10814.

The product of its digits is 61236, while the sum is 40.

The square root of 27396913 is about 5234.2060524974. The cubic root of 27396913 is about 301.4629029362.

The spelling of 27396913 in words is "twenty-seven million, three hundred ninety-six thousand, nine hundred thirteen".