13983913 has 2 divisors, whose sum is σ = 13983914. Its totient is φ = 13983912.

The previous prime is 13983899. The next prime is 13983917. The reversal of 13983913 is 31938931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13741849 + 242064 = 3707^2 + 492^2 .

It is a cyclic number.

It is not a de Polignac number, because 13983913 - 2¹³ = 13975721 is a prime.

It is not a weakly prime, because it can be changed into another prime (13983917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6991956 + 6991957.

It is an arithmetic number, because the mean of its divisors is an integer number (6991957).

Almost surely, 2^13983913 is an apocalyptic number.

It is an amenable number.

13983913 is a deficient number, since it is larger than the sum of its proper divisors (1).

13983913 is an equidigital number, since it uses as much as digits as its factorization.

13983913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 37.

The square root of 13983913 is about 3739.5070530753. The cubic root of 13983913 is about 240.9218768493.

The spelling of 13983913 in words is "thirteen million, nine hundred eighty-three thousand, nine hundred thirteen".