13493999 has 2 divisors, whose sum is σ = 13494000. Its totient is φ = 13493998.

The previous prime is 13493989. The next prime is 13494037. The reversal of 13493999 is 99939431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13493999 - 2⁴ = 13493983 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 (13493989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6746999 + 6747000.

It is an arithmetic number, because the mean of its divisors is an integer number (6747000).

Almost surely, 2^13493999 is an apocalyptic number.

13493999 is a deficient number, since it is larger than the sum of its proper divisors (1).

13493999 is an equidigital number, since it uses as much as digits as its factorization.

13493999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 236196, while the sum is 47.

The square root of 13493999 is about 3673.4178907388. The cubic root of 13493999 is about 238.0748711080.

The spelling of 13493999 in words is "thirteen million, four hundred ninety-three thousand, nine hundred ninety-nine".