13633313 has 2 divisors, whose sum is σ = 13633314. Its totient is φ = 13633312.

The previous prime is 13633309. The next prime is 13633339. The reversal of 13633313 is 31333631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8025889 + 5607424 = 2833^2 + 2368^2 .

It is a cyclic number.

It is not a de Polignac number, because 13633313 - 2² = 13633309 is a prime.

It is not a weakly prime, because it can be changed into another prime (13633513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6816656 + 6816657.

It is an arithmetic number, because the mean of its divisors is an integer number (6816657).

Almost surely, 2^13633313 is an apocalyptic number.

It is an amenable number.

13633313 is a deficient number, since it is larger than the sum of its proper divisors (1).

13633313 is an equidigital number, since it uses as much as digits as its factorization.

13633313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 23.

The square root of 13633313 is about 3692.3316481595. The cubic root of 13633313 is about 238.8913741063.

Adding to 13633313 its reverse (31333631), we get a palindrome (44966944).

The spelling of 13633313 in words is "thirteen million, six hundred thirty-three thousand, three hundred thirteen".