33272289 has 14 divisors (see below), whose sum is σ = 49886706. Its totient is φ = 22181040.

The previous prime is 33272273. The next prime is 33272311. The reversal of 33272289 is 98227233.

It can be written as a sum of positive squares in only one way, i.e., 28005264 + 5267025 = 5292^2 + 2295^2 .

It is not a de Polignac number, because 33272289 - 2⁴ = 33272273 is a prime.

It is a super-2 number, since 2×33272289² = 2214090430599042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33272189) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 22092 + ... + 23549.

Almost surely, 2^33272289 is an apocalyptic number.

It is an amenable number.

33272289 is a deficient number, since it is larger than the sum of its proper divisors (16614417).

33272289 is an frugal number, since it uses more digits than its factorization.

33272289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45659 (or 45644 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 33272289 is about 5768.2136749604. The cubic root of 33272289 is about 321.6332159666.

The spelling of 33272289 in words is "thirty-three million, two hundred seventy-two thousand, two hundred eighty-nine".