82333809 has 12 divisors (see below), whose sum is σ = 119126800. Its totient is φ = 54796824.

The previous prime is 82333787. The next prime is 82333817. The reversal of 82333809 is 90833328.

It is not a de Polignac number, because 82333809 - 2⁹ = 82333297 is a prime.

It is a super-2 number, since 2×82333809² = 13557712208896962, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82333819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1819 + ... + 12960.

Almost surely, 2^82333809 is an apocalyptic number.

It is an amenable number.

82333809 is a deficient number, since it is larger than the sum of its proper divisors (36792991).

82333809 is a wasteful number, since it uses less digits than its factorization.

82333809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15404 (or 15401 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 82333809 is about 9073.7979369170. The cubic root of 82333809 is about 435.0368736083.

The spelling of 82333809 in words is "eighty-two million, three hundred thirty-three thousand, eight hundred nine".