33022989 has 6 divisors (see below), whose sum is σ = 47699886. Its totient is φ = 22015320.

The previous prime is 33022973. The next prime is 33023017. The reversal of 33022989 is 98922033.

It can be written as a sum of positive squares in only one way, i.e., 32012964 + 1010025 = 5658^2 + 1005^2 .

It is not a de Polignac number, because 33022989 - 2⁴ = 33022973 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33022939) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1834602 + ... + 1834619.

It is an arithmetic number, because the mean of its divisors is an integer number (7949981).

Almost surely, 2^33022989 is an apocalyptic number.

It is an amenable number.

33022989 is a deficient number, since it is larger than the sum of its proper divisors (14676897).

33022989 is a wasteful number, since it uses less digits than its factorization.

33022989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669227 (or 3669224 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 33022989 is about 5746.5632337946. The cubic root of 33022989 is about 320.8278985455.

The spelling of 33022989 in words is "thirty-three million, twenty-two thousand, nine hundred eighty-nine".