13879005 has 48 divisors (see below), whose sum is σ = 26987904. Its totient is φ = 6061440.

The previous prime is 13879001. The next prime is 13879027. The reversal of 13879005 is 50097831.

It is not a de Polignac number, because 13879005 - 2² = 13879001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13879001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16495 + ... + 17315.

It is an arithmetic number, because the mean of its divisors is an integer number (562248).

Almost surely, 2^13879005 is an apocalyptic number.

13879005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13879005 is a deficient number, since it is larger than the sum of its proper divisors (13108899).

13879005 is a wasteful number, since it uses less digits than its factorization.

13879005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 13879005 is about 3725.4536636496. The cubic root of 13879005 is about 240.3178947153.

The spelling of 13879005 in words is "thirteen million, eight hundred seventy-nine thousand, five".