13929401 has 4 divisors (see below), whose sum is σ = 13990992. Its totient is φ = 13867812.

The previous prime is 13929371. The next prime is 13929431. The reversal of 13929401 is 10492931.

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 an interprime number because it is at equal distance from previous prime (13929371) and next prime (13929431).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13929401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13929431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30455 + ... + 30908.

It is an arithmetic number, because the mean of its divisors is an integer number (3497748).

Almost surely, 2^13929401 is an apocalyptic number.

It is an amenable number.

13929401 is a deficient number, since it is larger than the sum of its proper divisors (61591).

13929401 is an equidigital number, since it uses as much as digits as its factorization.

13929401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61590.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 13929401 is about 3732.2112748343. The cubic root of 13929401 is about 240.6084158132.

The spelling of 13929401 in words is "thirteen million, nine hundred twenty-nine thousand, four hundred one".