13933961 has 2 divisors, whose sum is σ = 13933962. Its totient is φ = 13933960.

The previous prime is 13933937. The next prime is 13933967. The reversal of 13933961 is 16933931.

13933961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6990736 + 6943225 = 2644^2 + 2635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13933961 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13933967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6966980 + 6966981.

It is an arithmetic number, because the mean of its divisors is an integer number (6966981).

Almost surely, 2^13933961 is an apocalyptic number.

It is an amenable number.

13933961 is a deficient number, since it is larger than the sum of its proper divisors (1).

13933961 is an equidigital number, since it uses as much as digits as its factorization.

13933961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13122, while the sum is 35.

The square root of 13933961 is about 3732.8221227377. The cubic root of 13933961 is about 240.6346685495.

The spelling of 13933961 in words is "thirteen million, nine hundred thirty-three thousand, nine hundred sixty-one".