33989345 has 16 divisors (see below), whose sum is σ = 44228352. Its totient is φ = 24926400.

The previous prime is 33989321. The next prime is 33989353. The reversal of 33989345 is 54398933.

It is not a de Polignac number, because 33989345 - 2⁸ = 33989089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33989296 and 33989305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8084 + ... + 11546.

It is an arithmetic number, because the mean of its divisors is an integer number (2764272).

Almost surely, 2^33989345 is an apocalyptic number.

It is an amenable number.

33989345 is a deficient number, since it is larger than the sum of its proper divisors (10239007).

33989345 is a wasteful number, since it uses less digits than its factorization.

33989345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632.

The product of its digits is 349920, while the sum is 44.

The square root of 33989345 is about 5830.0381645406. The cubic root of 33989345 is about 323.9273353531.

The spelling of 33989345 in words is "thirty-three million, nine hundred eighty-nine thousand, three hundred forty-five".