13394321 has 2 divisors, whose sum is σ = 13394322. Its totient is φ = 13394320.

The previous prime is 13394299. The next prime is 13394347. The reversal of 13394321 is 12349331.

It is a happy number.

It is an a-pointer prime, because the next prime (13394347) can be obtained adding 13394321 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8620096 + 4774225 = 2936^2 + 2185^2 .

It is a cyclic number.

It is not a de Polignac number, because 13394321 - 2¹⁴ = 13377937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13394921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6697160 + 6697161.

It is an arithmetic number, because the mean of its divisors is an integer number (6697161).

Almost surely, 2^13394321 is an apocalyptic number.

It is an amenable number.

13394321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13394321 is an equidigital number, since it uses as much as digits as its factorization.

13394321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 26.

The square root of 13394321 is about 3659.8252690532. The cubic root of 13394321 is about 237.4872148242.

The spelling of 13394321 in words is "thirteen million, three hundred ninety-four thousand, three hundred twenty-one".