13872739 has 2 divisors, whose sum is σ = 13872740. Its totient is φ = 13872738.

The previous prime is 13872737. The next prime is 13872763. The reversal of 13872739 is 93727831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13872739 - 2¹ = 13872737 is a prime.

Together with 13872737, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13872737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6936369 + 6936370.

It is an arithmetic number, because the mean of its divisors is an integer number (6936370).

Almost surely, 2^13872739 is an apocalyptic number.

13872739 is a deficient number, since it is larger than the sum of its proper divisors (1).

13872739 is an equidigital number, since it uses as much as digits as its factorization.

13872739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 13872739 is about 3724.6125973046. The cubic root of 13872739 is about 240.2817235680.

The spelling of 13872739 in words is "thirteen million, eight hundred seventy-two thousand, seven hundred thirty-nine".