13229879 has 4 divisors (see below), whose sum is σ = 14247576. Its totient is φ = 12212184.

The previous prime is 13229861. The next prime is 13229897. The reversal of 13229879 is 97892231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13229861) and next prime (13229897).

It is a cyclic number.

It is not a de Polignac number, because 13229879 - 2¹⁶ = 13164343 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 (13229809) 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, 508829 + ... + 508854.

It is an arithmetic number, because the mean of its divisors is an integer number (3561894).

Almost surely, 2^13229879 is an apocalyptic number.

13229879 is a deficient number, since it is larger than the sum of its proper divisors (1017697).

13229879 is a wasteful number, since it uses less digits than its factorization.

13229879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017696.

The product of its digits is 54432, while the sum is 41.

The square root of 13229879 is about 3637.2900626703. The cubic root of 13229879 is about 236.5113338540.

The spelling of 13229879 in words is "thirteen million, two hundred twenty-nine thousand, eight hundred seventy-nine".