13920793 has 2 divisors, whose sum is σ = 13920794. Its totient is φ = 13920792.

The previous prime is 13920779. The next prime is 13920799. The reversal of 13920793 is 39702931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11370384 + 2550409 = 3372^2 + 1597^2 .

It is an emirp because it is prime and its reverse (39702931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13920793 - 2¹³ = 13912601 is a prime.

It is not a weakly prime, because it can be changed into another prime (13920799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6960396 + 6960397.

It is an arithmetic number, because the mean of its divisors is an integer number (6960397).

Almost surely, 2^13920793 is an apocalyptic number.

It is an amenable number.

13920793 is a deficient number, since it is larger than the sum of its proper divisors (1).

13920793 is an equidigital number, since it uses as much as digits as its factorization.

13920793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 13920793 is about 3731.0578928770. The cubic root of 13920793 is about 240.5588423958.

The spelling of 13920793 in words is "thirteen million, nine hundred twenty thousand, seven hundred ninety-three".