11914789 has 2 divisors, whose sum is σ = 11914790. Its totient is φ = 11914788.

The previous prime is 11914781. The next prime is 11914813. The reversal of 11914789 is 98741911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10510564 + 1404225 = 3242^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 11914789 - 2³ = 11914781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11914781) 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, 5957394 + 5957395.

It is an arithmetic number, because the mean of its divisors is an integer number (5957395).

Almost surely, 2^11914789 is an apocalyptic number.

It is an amenable number.

11914789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11914789 is an equidigital number, since it uses as much as digits as its factorization.

11914789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 40.

The square root of 11914789 is about 3451.7805550179. The cubic root of 11914789 is about 228.3996593982.

The spelling of 11914789 in words is "eleven million, nine hundred fourteen thousand, seven hundred eighty-nine".