33280273 has 4 divisors (see below), whose sum is σ = 35840308. Its totient is φ = 30720240.

The previous prime is 33280259. The next prime is 33280321. The reversal of 33280273 is 37208233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37208233 = 3329 ⋅11177.

It can be written as a sum of positive squares in 2 ways, for example, as 1830609 + 31449664 = 1353^2 + 5608^2 .

It is a cyclic number.

It is not a de Polignac number, because 33280273 - 2¹³ = 33272081 is a prime.

It is a super-2 number, since 2×33280273² = 2215153141909058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33280213) 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, 1279998 + ... + 1280023.

It is an arithmetic number, because the mean of its divisors is an integer number (8960077).

Almost surely, 2^33280273 is an apocalyptic number.

It is an amenable number.

33280273 is a deficient number, since it is larger than the sum of its proper divisors (2560035).

33280273 is a wasteful number, since it uses less digits than its factorization.

33280273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560034.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 33280273 is about 5768.9057021241. The cubic root of 33280273 is about 321.6589402185.

The spelling of 33280273 in words is "thirty-three million, two hundred eighty thousand, two hundred seventy-three".