13669427 has 4 divisors (see below), whose sum is σ = 13681056. Its totient is φ = 13657800.

The previous prime is 13669423. The next prime is 13669459. The reversal of 13669427 is 72496631.

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

It is a cyclic number.

It is not a de Polignac number, because 13669427 - 2² = 13669423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13669423) 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, 3824 + ... + 6477.

It is an arithmetic number, because the mean of its divisors is an integer number (3420264).

Almost surely, 2^13669427 is an apocalyptic number.

13669427 is a deficient number, since it is larger than the sum of its proper divisors (11629).

13669427 is a wasteful number, since it uses less digits than its factorization.

13669427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11628.

The product of its digits is 54432, while the sum is 38.

The square root of 13669427 is about 3697.2188195994. The cubic root of 13669427 is about 239.1021254349.

The spelling of 13669427 in words is "thirteen million, six hundred sixty-nine thousand, four hundred twenty-seven".