13936493 has 2 divisors, whose sum is σ = 13936494. Its totient is φ = 13936492.

The previous prime is 13936477. The next prime is 13936499. The reversal of 13936493 is 39463931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9597604 + 4338889 = 3098^2 + 2083^2 .

It is a cyclic number.

It is not a de Polignac number, because 13936493 - 2⁴ = 13936477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13936499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6968246 + 6968247.

It is an arithmetic number, because the mean of its divisors is an integer number (6968247).

Almost surely, 2^13936493 is an apocalyptic number.

It is an amenable number.

13936493 is a deficient number, since it is larger than the sum of its proper divisors (1).

13936493 is an equidigital number, since it uses as much as digits as its factorization.

13936493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 38.

The square root of 13936493 is about 3733.1612609155. The cubic root of 13936493 is about 240.6492432537.

The spelling of 13936493 in words is "thirteen million, nine hundred thirty-six thousand, four hundred ninety-three".