33509489 has 6 divisors (see below), whose sum is σ = 36285606. Its totient is φ = 30931680.

The previous prime is 33509461. The next prime is 33509501. The reversal of 33509489 is 98490533.

It can be written as a sum of positive squares in 3 ways, for example, as 4133089 + 29376400 = 2033^2 + 5420^2 .

It is not a de Polignac number, because 33509489 - 2¹² = 33505393 is a prime.

It is a super-2 number, since 2×33509489² = 2245771706082242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33509429) 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, 98972 + ... + 99309.

It is an arithmetic number, because the mean of its divisors is an integer number (6047601).

Almost surely, 2^33509489 is an apocalyptic number.

It is an amenable number.

33509489 is a deficient number, since it is larger than the sum of its proper divisors (2776117).

33509489 is a wasteful number, since it uses less digits than its factorization.

33509489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198307 (or 198294 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 33509489 is about 5788.7381181048. The cubic root of 33509489 is about 322.3957205467.

The spelling of 33509489 in words is "thirty-three million, five hundred nine thousand, four hundred eighty-nine".