13949959 has 4 divisors (see below), whose sum is σ = 13963816. Its totient is φ = 13936104.

The previous prime is 13949953. The next prime is 13949977. The reversal of 13949959 is 95994931.

13949959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13949959 - 2³ = 13949951 is a prime.

It is a super-2 number, since 2×13949959² = 389202712203362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13949951) 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, 5289 + ... + 7474.

It is an arithmetic number, because the mean of its divisors is an integer number (3490954).

Almost surely, 2^13949959 is an apocalyptic number.

13949959 is a deficient number, since it is larger than the sum of its proper divisors (13857).

13949959 is a wasteful number, since it uses less digits than its factorization.

13949959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13856.

The product of its digits is 393660, while the sum is 49.

The square root of 13949959 is about 3734.9643907272. The cubic root of 13949959 is about 240.7267266287.

The spelling of 13949959 in words is "thirteen million, nine hundred forty-nine thousand, nine hundred fifty-nine".