82333331 has 4 divisors (see below), whose sum is σ = 84085152. Its totient is φ = 80581512.

The previous prime is 82333319. The next prime is 82333333. The reversal of 82333331 is 13333328.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82333331 - 2⁶ = 82333267 is a prime.

It is a super-2 number, since 2×82333331² = 13557554787111122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82333331.

It is not an unprimeable number, because it can be changed into a prime (82333333) 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, 875840 + ... + 875933.

It is an arithmetic number, because the mean of its divisors is an integer number (21021288).

Almost surely, 2^82333331 is an apocalyptic number.

82333331 is a deficient number, since it is larger than the sum of its proper divisors (1751821).

82333331 is a wasteful number, since it uses less digits than its factorization.

82333331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751820.

The product of its digits is 3888, while the sum is 26.

The square root of 82333331 is about 9073.7715973018. The cubic root of 82333331 is about 435.0360317183.

Adding to 82333331 its reverse (13333328), we get a palindrome (95666659).

The spelling of 82333331 in words is "eighty-two million, three hundred thirty-three thousand, three hundred thirty-one".