13966949 has 2 divisors, whose sum is σ = 13966950. Its totient is φ = 13966948.

The previous prime is 13966879. The next prime is 13966969. The reversal of 13966949 is 94966931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8514724 + 5452225 = 2918^2 + 2335^2 .

It is a cyclic number.

It is not a de Polignac number, because 13966949 - 2¹⁶ = 13901413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13966969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6983474 + 6983475.

It is an arithmetic number, because the mean of its divisors is an integer number (6983475).

Almost surely, 2^13966949 is an apocalyptic number.

It is an amenable number.

13966949 is a deficient number, since it is larger than the sum of its proper divisors (1).

13966949 is an equidigital number, since it uses as much as digits as its factorization.

13966949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 47.

The square root of 13966949 is about 3737.2381513626. The cubic root of 13966949 is about 240.8244159909.

The spelling of 13966949 in words is "thirteen million, nine hundred sixty-six thousand, nine hundred forty-nine".