13979228 has 6 divisors (see below), whose sum is σ = 24463656. Its totient is φ = 6989612.

The previous prime is 13979213. The next prime is 13979249. The reversal of 13979228 is 82297931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1747400 + ... + 1747407.

It is an arithmetic number, because the mean of its divisors is an integer number (4077276).

Almost surely, 2^13979228 is an apocalyptic number.

It is an amenable number.

13979228 is a deficient number, since it is larger than the sum of its proper divisors (10484428).

13979228 is a wasteful number, since it uses less digits than its factorization.

13979228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494811 (or 3494809 counting only the distinct ones).

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

The square root of 13979228 is about 3738.8805811366. The cubic root of 13979228 is about 240.8949686663.

The spelling of 13979228 in words is "thirteen million, nine hundred seventy-nine thousand, two hundred twenty-eight".