13968949 has 2 divisors, whose sum is σ = 13968950. Its totient is φ = 13968948.

The previous prime is 13968919. The next prime is 13968953. The reversal of 13968949 is 94986931.

13968949 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., 12552849 + 1416100 = 3543^2 + 1190^2 .

It is a cyclic number.

It is not a de Polignac number, because 13968949 - 2⁷ = 13968821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13968919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6984474 + 6984475.

It is an arithmetic number, because the mean of its divisors is an integer number (6984475).

Almost surely, 2^13968949 is an apocalyptic number.

It is an amenable number.

13968949 is a deficient number, since it is larger than the sum of its proper divisors (1).

13968949 is an equidigital number, since it uses as much as digits as its factorization.

13968949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 49.

The square root of 13968949 is about 3737.5057190592. The cubic root of 13968949 is about 240.8359104088.

The spelling of 13968949 in words is "thirteen million, nine hundred sixty-eight thousand, nine hundred forty-nine".