13422993 has 4 divisors (see below), whose sum is σ = 17897328. Its totient is φ = 8948660.

The previous prime is 13422943. The next prime is 13423019. The reversal of 13422993 is 39922431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13422993 - 2⁹ = 13422481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13422943) 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 in 3 ways as a sum of consecutive naturals, for example, 2237163 + ... + 2237168.

It is an arithmetic number, because the mean of its divisors is an integer number (4474332).

Almost surely, 2^13422993 is an apocalyptic number.

It is an amenable number.

13422993 is a deficient number, since it is larger than the sum of its proper divisors (4474335).

13422993 is an equidigital number, since it uses as much as digits as its factorization.

13422993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4474334.

The product of its digits is 11664, while the sum is 33.

The square root of 13422993 is about 3663.7403019319. The cubic root of 13422993 is about 237.6565497874.

The spelling of 13422993 in words is "thirteen million, four hundred twenty-two thousand, nine hundred ninety-three".