13699401 has 4 divisors (see below), whose sum is σ = 18265872. Its totient is φ = 9132932.

The previous prime is 13699393. The next prime is 13699403. The reversal of 13699401 is 10499631.

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 an emirpimes, since its reverse is a distinct semiprime: 10499631 = 3 ⋅3499877.

It is a cyclic number.

It is not a de Polignac number, because 13699401 - 2³ = 13699393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13699403) 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, 2283231 + ... + 2283236.

It is an arithmetic number, because the mean of its divisors is an integer number (4566468).

Almost surely, 2^13699401 is an apocalyptic number.

It is an amenable number.

13699401 is a deficient number, since it is larger than the sum of its proper divisors (4566471).

13699401 is an equidigital number, since it uses as much as digits as its factorization.

13699401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566470.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 13699401 is about 3701.2701873816. The cubic root of 13699401 is about 239.2767637000.

The spelling of 13699401 in words is "thirteen million, six hundred ninety-nine thousand, four hundred one".