11998933 has 2 divisors, whose sum is σ = 11998934. Its totient is φ = 11998932.

The previous prime is 11998927. The next prime is 11998949. The reversal of 11998933 is 33989911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11785489 + 213444 = 3433^2 + 462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11998933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11998933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11998033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5999466 + 5999467.

It is an arithmetic number, because the mean of its divisors is an integer number (5999467).

Almost surely, 2^11998933 is an apocalyptic number.

It is an amenable number.

11998933 is a deficient number, since it is larger than the sum of its proper divisors (1).

11998933 is an equidigital number, since it uses as much as digits as its factorization.

11998933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 43.

The square root of 11998933 is about 3463.9476035298. The cubic root of 11998933 is about 228.9360626979.

The spelling of 11998933 in words is "eleven million, nine hundred ninety-eight thousand, nine hundred thirty-three".