11936789 has 2 divisors, whose sum is σ = 11936790. Its totient is φ = 11936788.

The previous prime is 11936779. The next prime is 11936797. The reversal of 11936789 is 98763911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6838225 + 5098564 = 2615^2 + 2258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11936789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11936779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5968394 + 5968395.

It is an arithmetic number, because the mean of its divisors is an integer number (5968395).

Almost surely, 2^11936789 is an apocalyptic number.

It is an amenable number.

11936789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11936789 is an equidigital number, since it uses as much as digits as its factorization.

11936789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 44.

The square root of 11936789 is about 3454.9658464303. The cubic root of 11936789 is about 228.5401487516.

The spelling of 11936789 in words is "eleven million, nine hundred thirty-six thousand, seven hundred eighty-nine".