13698491 has 2 divisors, whose sum is σ = 13698492. Its totient is φ = 13698490.

The previous prime is 13698463. The next prime is 13698499. The reversal of 13698491 is 19489631.

13698491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13698491 - 2⁶ = 13698427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13698499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6849245 + 6849246.

It is an arithmetic number, because the mean of its divisors is an integer number (6849246).

Almost surely, 2^13698491 is an apocalyptic number.

13698491 is a deficient number, since it is larger than the sum of its proper divisors (1).

13698491 is an equidigital number, since it uses as much as digits as its factorization.

13698491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 41.

The square root of 13698491 is about 3701.1472545685. The cubic root of 13698491 is about 239.2714654957.

The spelling of 13698491 in words is "thirteen million, six hundred ninety-eight thousand, four hundred ninety-one".