13872613 has 2 divisors, whose sum is σ = 13872614. Its totient is φ = 13872612.

The previous prime is 13872601. The next prime is 13872623. The reversal of 13872613 is 31627831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8025889 + 5846724 = 2833^2 + 2418^2 .

It is a cyclic number.

It is not a de Polignac number, because 13872613 - 2²¹ = 11775461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13872623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6936306 + 6936307.

It is an arithmetic number, because the mean of its divisors is an integer number (6936307).

Almost surely, 2^13872613 is an apocalyptic number.

It is an amenable number.

13872613 is a deficient number, since it is larger than the sum of its proper divisors (1).

13872613 is an equidigital number, since it uses as much as digits as its factorization.

13872613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 13872613 is about 3724.5956827554. The cubic root of 13872613 is about 240.2809961080.

The spelling of 13872613 in words is "thirteen million, eight hundred seventy-two thousand, six hundred thirteen".