13898719 has 2 divisors, whose sum is σ = 13898720. Its totient is φ = 13898718.

The previous prime is 13898701. The next prime is 13898771. The reversal of 13898719 is 91789831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13898719 - 2²¹ = 11801567 is a prime.

It is a super-2 number, since 2×13898719² = 386348779681922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13898779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6949359 + 6949360.

It is an arithmetic number, because the mean of its divisors is an integer number (6949360).

Almost surely, 2^13898719 is an apocalyptic number.

13898719 is a deficient number, since it is larger than the sum of its proper divisors (1).

13898719 is an equidigital number, since it uses as much as digits as its factorization.

13898719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 46.

The square root of 13898719 is about 3728.0985770229. The cubic root of 13898719 is about 240.4316249048.

The spelling of 13898719 in words is "thirteen million, eight hundred ninety-eight thousand, seven hundred nineteen".