13430993 has 2 divisors, whose sum is σ = 13430994. Its totient is φ = 13430992.

The previous prime is 13430981. The next prime is 13431017. The reversal of 13430993 is 39903431.

13430993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12902464 + 528529 = 3592^2 + 727^2 .

It is a cyclic number.

It is not a de Polignac number, because 13430993 - 2⁸ = 13430737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13430953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6715496 + 6715497.

It is an arithmetic number, because the mean of its divisors is an integer number (6715497).

Almost surely, 2^13430993 is an apocalyptic number.

It is an amenable number.

13430993 is a deficient number, since it is larger than the sum of its proper divisors (1).

13430993 is an equidigital number, since it uses as much as digits as its factorization.

13430993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 13430993 is about 3664.8319197475. The cubic root of 13430993 is about 237.7037542326.

The spelling of 13430993 in words is "thirteen million, four hundred thirty thousand, nine hundred ninety-three".