13831427 has 2 divisors, whose sum is σ = 13831428. Its totient is φ = 13831426.

The previous prime is 13831417. The next prime is 13831453. The reversal of 13831427 is 72413831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13831427 - 2²⁰ = 12782851 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13831427.

It is not a weakly prime, because it can be changed into another prime (13831417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6915713 + 6915714.

It is an arithmetic number, because the mean of its divisors is an integer number (6915714).

Almost surely, 2^13831427 is an apocalyptic number.

13831427 is a deficient number, since it is larger than the sum of its proper divisors (1).

13831427 is an equidigital number, since it uses as much as digits as its factorization.

13831427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 13831427 is about 3719.0626507226. The cubic root of 13831427 is about 240.0429726293.

The spelling of 13831427 in words is "thirteen million, eight hundred thirty-one thousand, four hundred twenty-seven".