11987033 has 2 divisors, whose sum is σ = 11987034. Its totient is φ = 11987032.

The previous prime is 11987029. The next prime is 11987051. The reversal of 11987033 is 33078911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10004569 + 1982464 = 3163^2 + 1408^2 .

It is a cyclic number.

It is not a de Polignac number, because 11987033 - 2² = 11987029 is a prime.

It is not a weakly prime, because it can be changed into another prime (11987083) 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, 5993516 + 5993517.

It is an arithmetic number, because the mean of its divisors is an integer number (5993517).

Almost surely, 2^11987033 is an apocalyptic number.

It is an amenable number.

11987033 is a deficient number, since it is larger than the sum of its proper divisors (1).

11987033 is an equidigital number, since it uses as much as digits as its factorization.

11987033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 11987033 is about 3462.2294840175. The cubic root of 11987033 is about 228.8603548476.

The spelling of 11987033 in words is "eleven million, nine hundred eighty-seven thousand, thirty-three".