13919593 has 2 divisors, whose sum is σ = 13919594. Its totient is φ = 13919592.

The previous prime is 13919579. The next prime is 13919603. The reversal of 13919593 is 39591931.

13919593 is nontrivially palindromic in base 7.

13919593 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., 13897984 + 21609 = 3728^2 + 147^2 .

It is a cyclic number.

It is not a de Polignac number, because 13919593 - 2⁵ = 13919561 is a prime.

It is not a weakly prime, because it can be changed into another prime (13919513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6959796 + 6959797.

It is an arithmetic number, because the mean of its divisors is an integer number (6959797).

Almost surely, 2^13919593 is an apocalyptic number.

It is an amenable number.

13919593 is a deficient number, since it is larger than the sum of its proper divisors (1).

13919593 is an equidigital number, since it uses as much as digits as its factorization.

13919593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32805, while the sum is 40.

The square root of 13919593 is about 3730.8970771116. The cubic root of 13919593 is about 240.5519299806.

The spelling of 13919593 in words is "thirteen million, nine hundred nineteen thousand, five hundred ninety-three".