13630933 has 2 divisors, whose sum is σ = 13630934. Its totient is φ = 13630932.

The previous prime is 13630919. The next prime is 13630937. The reversal of 13630933 is 33903631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6959044 + 6671889 = 2638^2 + 2583^2 .

It is an emirp because it is prime and its reverse (33903631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13630933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13630937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6815466 + 6815467.

It is an arithmetic number, because the mean of its divisors is an integer number (6815467).

Almost surely, 2^13630933 is an apocalyptic number.

It is an amenable number.

13630933 is a deficient number, since it is larger than the sum of its proper divisors (1).

13630933 is an equidigital number, since it uses as much as digits as its factorization.

13630933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 28.

The square root of 13630933 is about 3692.0093445169. The cubic root of 13630933 is about 238.8774720181.

The spelling of 13630933 in words is "thirteen million, six hundred thirty thousand, nine hundred thirty-three".