13804019 has 2 divisors, whose sum is σ = 13804020. Its totient is φ = 13804018.

The previous prime is 13803991. The next prime is 13804027. The reversal of 13804019 is 91040831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13804019 is a prime.

It is a super-2 number, since 2×13804019² = 381101881104722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13804039) 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, 6902009 + 6902010.

It is an arithmetic number, because the mean of its divisors is an integer number (6902010).

Almost surely, 2^13804019 is an apocalyptic number.

13804019 is a deficient number, since it is larger than the sum of its proper divisors (1).

13804019 is an equidigital number, since it uses as much as digits as its factorization.

13804019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 13804019 is about 3715.3760240385. The cubic root of 13804019 is about 239.8843134579.

The spelling of 13804019 in words is "thirteen million, eight hundred four thousand, nineteen".