13418393 has 2 divisors, whose sum is σ = 13418394. Its totient is φ = 13418392.

The previous prime is 13418369. The next prime is 13418413. The reversal of 13418393 is 39381431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13344409 + 73984 = 3653^2 + 272^2 .

It is a cyclic number.

It is not a de Polignac number, because 13418393 - 2⁸ = 13418137 is a prime.

It is a super-3 number, since 3×13418393³ (a number of 22 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13418303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6709196 + 6709197.

It is an arithmetic number, because the mean of its divisors is an integer number (6709197).

Almost surely, 2^13418393 is an apocalyptic number.

It is an amenable number.

13418393 is a deficient number, since it is larger than the sum of its proper divisors (1).

13418393 is an equidigital number, since it uses as much as digits as its factorization.

13418393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The square root of 13418393 is about 3663.1124743857. The cubic root of 13418393 is about 237.6293987381.

The spelling of 13418393 in words is "thirteen million, four hundred eighteen thousand, three hundred ninety-three".