27723913 has 16 divisors (see below), whose sum is σ = 33586560. Its totient is φ = 22377600.

The previous prime is 27723893. The next prime is 27723919. The reversal of 27723913 is 31932772.

It is not a de Polignac number, because 27723913 - 2⁵ = 27723881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27723919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6658 + ... + 9988.

It is an arithmetic number, because the mean of its divisors is an integer number (2099160).

Almost surely, 2^27723913 is an apocalyptic number.

It is an amenable number.

27723913 is a deficient number, since it is larger than the sum of its proper divisors (5862647).

27723913 is a wasteful number, since it uses less digits than its factorization.

27723913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408.

The product of its digits is 15876, while the sum is 34.

The square root of 27723913 is about 5265.3502257685. The cubic root of 27723913 is about 302.6575478751.

The spelling of 27723913 in words is "twenty-seven million, seven hundred twenty-three thousand, nine hundred thirteen".