33499989 has 6 divisors (see below), whose sum is σ = 48388886. Its totient is φ = 22333320.

The previous prime is 33499969. The next prime is 33499997. The reversal of 33499989 is 98999433.

It can be written as a sum of positive squares in only one way, i.e., 30140100 + 3359889 = 5490^2 + 1833^2 .

It is not a de Polignac number, because 33499989 - 2⁵ = 33499957 is a prime.

It is a super-2 number, since 2×33499989² = 2244498526000242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33499909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1861102 + ... + 1861119.

Almost surely, 2^33499989 is an apocalyptic number.

It is an amenable number.

33499989 is a deficient number, since it is larger than the sum of its proper divisors (14888897).

33499989 is a wasteful number, since it uses less digits than its factorization.

33499989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722227 (or 3722224 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 33499989 is about 5787.9175011398. The cubic root of 33499989 is about 322.3652510796.

The spelling of 33499989 in words is "thirty-three million, four hundred ninety-nine thousand, nine hundred eighty-nine".