11998369 has 2 divisors, whose sum is σ = 11998370. Its totient is φ = 11998368.

The previous prime is 11998303. The next prime is 11998381. The reversal of 11998369 is 96389911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6310144 + 5688225 = 2512^2 + 2385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11998369 is a prime.

It is a super-2 number, since 2×11998369² = 287921717320322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11998769) 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, 5999184 + 5999185.

It is an arithmetic number, because the mean of its divisors is an integer number (5999185).

Almost surely, 2^11998369 is an apocalyptic number.

It is an amenable number.

11998369 is a deficient number, since it is larger than the sum of its proper divisors (1).

11998369 is an equidigital number, since it uses as much as digits as its factorization.

11998369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 46.

The square root of 11998369 is about 3463.8661925658. The cubic root of 11998369 is about 228.9324756578.

The spelling of 11998369 in words is "eleven million, nine hundred ninety-eight thousand, three hundred sixty-nine".