33132989 has 4 divisors (see below), whose sum is σ = 33147324. Its totient is φ = 33118656.

The previous prime is 33132977. The next prime is 33133027. The reversal of 33132989 is 98923133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98923133 = 967 ⋅102299.

It can be written as a sum of positive squares in 2 ways, for example, as 6528025 + 26604964 = 2555^2 + 5158^2 .

It is a cyclic number.

It is not a de Polignac number, because 33132989 - 2²⁰ = 32084413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33132289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2822 + ... + 8615.

It is an arithmetic number, because the mean of its divisors is an integer number (8286831).

Almost surely, 2^33132989 is an apocalyptic number.

It is an amenable number.

33132989 is a deficient number, since it is larger than the sum of its proper divisors (14335).

33132989 is a wasteful number, since it uses less digits than its factorization.

33132989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14334.

The product of its digits is 34992, while the sum is 38.

The square root of 33132989 is about 5756.1262147385. The cubic root of 33132989 is about 321.1837310253.

The spelling of 33132989 in words is "thirty-three million, one hundred thirty-two thousand, nine hundred eighty-nine".