13957403 has 4 divisors (see below), whose sum is σ = 13967280. Its totient is φ = 13947528.

The previous prime is 13957387. The next prime is 13957417. The reversal of 13957403 is 30475931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13957403 - 2⁴ = 13957387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13957403.

It is not an unprimeable number, because it can be changed into a prime (13957303) 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, 2375 + ... + 5792.

It is an arithmetic number, because the mean of its divisors is an integer number (3491820).

Almost surely, 2^13957403 is an apocalyptic number.

13957403 is a deficient number, since it is larger than the sum of its proper divisors (9877).

13957403 is an equidigital number, since it uses as much as digits as its factorization.

13957403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9876.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 13957403 is about 3735.9607867321. The cubic root of 13957403 is about 240.7695380115.

The spelling of 13957403 in words is "thirteen million, nine hundred fifty-seven thousand, four hundred three".