11924789 has 2 divisors, whose sum is σ = 11924790. Its totient is φ = 11924788.

The previous prime is 11924779. The next prime is 11924821. The reversal of 11924789 is 98742911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10080625 + 1844164 = 3175^2 + 1358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11924789 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 (11924719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5962394 + 5962395.

It is an arithmetic number, because the mean of its divisors is an integer number (5962395).

Almost surely, 2^11924789 is an apocalyptic number.

It is an amenable number.

11924789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11924789 is an equidigital number, since it uses as much as digits as its factorization.

11924789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 41.

The square root of 11924789 is about 3453.2287789835. The cubic root of 11924789 is about 228.4635396149.

The spelling of 11924789 in words is "eleven million, nine hundred twenty-four thousand, seven hundred eighty-nine".