13890619 has 2 divisors, whose sum is σ = 13890620. Its totient is φ = 13890618.

The previous prime is 13890599. The next prime is 13890629. The reversal of 13890619 is 91609831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13890619 - 2⁵ = 13890587 is a prime.

It is a super-2 number, since 2×13890619² = 385898592406322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13890629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6945309 + 6945310.

It is an arithmetic number, because the mean of its divisors is an integer number (6945310).

Almost surely, 2^13890619 is an apocalyptic number.

13890619 is a deficient number, since it is larger than the sum of its proper divisors (1).

13890619 is an equidigital number, since it uses as much as digits as its factorization.

13890619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 13890619 is about 3727.0120740346. The cubic root of 13890619 is about 240.3849089782.

The spelling of 13890619 in words is "thirteen million, eight hundred ninety thousand, six hundred nineteen".