33799009 has 4 divisors (see below), whose sum is σ = 35787204. Its totient is φ = 31810816.

The previous prime is 33798997. The next prime is 33799027. The reversal of 33799009 is 90099733.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90099733 = 31 ⋅2906443.

It can be written as a sum of positive squares in 2 ways, for example, as 29376400 + 4422609 = 5420^2 + 2103^2 .

It is a cyclic number.

It is not a de Polignac number, because 33799009 - 2⁵ = 33798977 is a prime.

It is a super-2 number, since 2×33799009² = 2284746018764162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33799069) 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, 994072 + ... + 994105.

It is an arithmetic number, because the mean of its divisors is an integer number (8946801).

Almost surely, 2^33799009 is an apocalyptic number.

It is an amenable number.

33799009 is a deficient number, since it is larger than the sum of its proper divisors (1988195).

33799009 is a wasteful number, since it uses less digits than its factorization.

33799009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988194.

The product of its (nonzero) digits is 45927, while the sum is 40.

The square root of 33799009 is about 5813.6915122837. The cubic root of 33799009 is about 323.3215525756.

The spelling of 33799009 in words is "thirty-three million, seven hundred ninety-nine thousand, nine".