13910399 has 4 divisors (see below), whose sum is σ = 14086560. Its totient is φ = 13734240.

The previous prime is 13910389. The next prime is 13910417. The reversal of 13910399 is 99301931.

13910399 = 380² + 381² + ... + 458².

It is a happy number.

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 13910399 - 2⁴ = 13910383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13910329) 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, 87962 + ... + 88119.

It is an arithmetic number, because the mean of its divisors is an integer number (3521640).

Almost surely, 2^13910399 is an apocalyptic number.

13910399 is a deficient number, since it is larger than the sum of its proper divisors (176161).

13910399 is an equidigital number, since it uses as much as digits as its factorization.

13910399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176160.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 13910399 is about 3729.6647302405. The cubic root of 13910399 is about 240.4989561722.

The spelling of 13910399 in words is "thirteen million, nine hundred ten thousand, three hundred ninety-nine".