33036989 has 2 divisors, whose sum is σ = 33036990. Its totient is φ = 33036988.

The previous prime is 33036961. The next prime is 33037007. The reversal of 33036989 is 98963033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24334489 + 8702500 = 4933^2 + 2950^2 .

It is a cyclic number.

It is not a de Polignac number, because 33036989 - 2¹⁶ = 32971453 is a prime.

It is a super-2 number, since 2×33036989² = 2182885284372242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33036589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16518494 + 16518495.

It is an arithmetic number, because the mean of its divisors is an integer number (16518495).

Almost surely, 2^33036989 is an apocalyptic number.

It is an amenable number.

33036989 is a deficient number, since it is larger than the sum of its proper divisors (1).

33036989 is an equidigital number, since it uses as much as digits as its factorization.

33036989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 33036989 is about 5747.7812240899. The cubic root of 33036989 is about 320.8732301578.

The spelling of 33036989 in words is "thirty-three million, thirty-six thousand, nine hundred eighty-nine".