13927697 has 4 divisors (see below), whose sum is σ = 15917376. Its totient is φ = 11938020.

The previous prime is 13927687. The next prime is 13927721. The reversal of 13927697 is 79672931.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 13927697 - 2¹² = 13923601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13927687) 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, 994829 + ... + 994842.

It is an arithmetic number, because the mean of its divisors is an integer number (3979344).

Almost surely, 2^13927697 is an apocalyptic number.

It is an amenable number.

13927697 is a deficient number, since it is larger than the sum of its proper divisors (1989679).

13927697 is an equidigital number, since it uses as much as digits as its factorization.

13927697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989678.

The product of its digits is 142884, while the sum is 44.

The square root of 13927697 is about 3731.9829849559. The cubic root of 13927697 is about 240.5986041097.

The spelling of 13927697 in words is "thirteen million, nine hundred twenty-seven thousand, six hundred ninety-seven".