13964479 has 4 divisors (see below), whose sum is σ = 13985784. Its totient is φ = 13943176.

The previous prime is 13964453. The next prime is 13964491. The reversal of 13964479 is 97446931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97446931 = 29 ⋅3360239.

It is a cyclic number.

It is not a de Polignac number, because 13964479 - 2¹⁵ = 13931711 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 (13964779) 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, 9637 + ... + 10990.

It is an arithmetic number, because the mean of its divisors is an integer number (3496446).

Almost surely, 2^13964479 is an apocalyptic number.

13964479 is a deficient number, since it is larger than the sum of its proper divisors (21305).

13964479 is an equidigital number, since it uses as much as digits as its factorization.

13964479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21304.

The product of its digits is 163296, while the sum is 43.

The square root of 13964479 is about 3736.9076788168. The cubic root of 13964479 is about 240.8102188704.

The spelling of 13964479 in words is "thirteen million, nine hundred sixty-four thousand, four hundred seventy-nine".