13945479 has 8 divisors (see below), whose sum is σ = 18774912. Its totient is φ = 9206520.

The previous prime is 13945471. The next prime is 13945493. The reversal of 13945479 is 97454931.

13945479 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13945479 - 2³ = 13945471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13945479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13945471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22257 + ... + 22874.

It is an arithmetic number, because the mean of its divisors is an integer number (2346864).

Almost surely, 2^13945479 is an apocalyptic number.

13945479 is a deficient number, since it is larger than the sum of its proper divisors (4829433).

13945479 is a wasteful number, since it uses less digits than its factorization.

13945479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45237.

The product of its digits is 136080, while the sum is 42.

The square root of 13945479 is about 3734.3646045880. The cubic root of 13945479 is about 240.7009542423.

The spelling of 13945479 in words is "thirteen million, nine hundred forty-five thousand, four hundred seventy-nine".