13919329 has 2 divisors, whose sum is σ = 13919330. Its totient is φ = 13919328.

The previous prime is 13919303. The next prime is 13919351. The reversal of 13919329 is 92391931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11888704 + 2030625 = 3448^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 13919329 - 2⁷ = 13919201 is a prime.

It is not a weakly prime, because it can be changed into another prime (13919629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6959664 + 6959665.

It is an arithmetic number, because the mean of its divisors is an integer number (6959665).

Almost surely, 2^13919329 is an apocalyptic number.

It is an amenable number.

13919329 is a deficient number, since it is larger than the sum of its proper divisors (1).

13919329 is an equidigital number, since it uses as much as digits as its factorization.

13919329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13122, while the sum is 37.

The square root of 13919329 is about 3730.8616967130. The cubic root of 13919329 is about 240.5504091959.

The spelling of 13919329 in words is "thirteen million, nine hundred nineteen thousand, three hundred twenty-nine".