33299489 has 4 divisors (see below), whose sum is σ = 33311556. Its totient is φ = 33287424.

The previous prime is 33299479. The next prime is 33299507. The reversal of 33299489 is 98499233.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98499233 = 7 ⋅14071319.

It can be written as a sum of positive squares in 2 ways, for example, as 22963264 + 10336225 = 4792^2 + 3215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33299489 is a prime.

It is a super-2 number, since 2×33299489² = 2217711935322242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33299429) 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, 377 + ... + 8169.

It is an arithmetic number, because the mean of its divisors is an integer number (8327889).

Almost surely, 2^33299489 is an apocalyptic number.

It is an amenable number.

33299489 is a deficient number, since it is larger than the sum of its proper divisors (12067).

33299489 is an equidigital number, since it uses as much as digits as its factorization.

33299489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12066.

The product of its digits is 419904, while the sum is 47.

The square root of 33299489 is about 5770.5709422899. The cubic root of 33299489 is about 321.7208368356.

The spelling of 33299489 in words is "thirty-three million, two hundred ninety-nine thousand, four hundred eighty-nine".