33075409 has 4 divisors (see below), whose sum is σ = 34816240. Its totient is φ = 31334580.

The previous prime is 33075391. The next prime is 33075431. The reversal of 33075409 is 90457033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90457033 = 4013 ⋅22541.

It is a cyclic number.

It is not a de Polignac number, because 33075409 - 2⁷ = 33075281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33075509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870387 + ... + 870424.

It is an arithmetic number, because the mean of its divisors is an integer number (8704060).

Almost surely, 2^33075409 is an apocalyptic number.

It is an amenable number.

33075409 is a deficient number, since it is larger than the sum of its proper divisors (1740831).

33075409 is a wasteful number, since it uses less digits than its factorization.

33075409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740830.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 33075409 is about 5751.1224121905. The cubic root of 33075409 is about 320.9975672930.

The spelling of 33075409 in words is "thirty-three million, seventy-five thousand, four hundred nine".