82304091 has 6 divisors (see below), whose sum is σ = 118883700. Its totient is φ = 54869388.

The previous prime is 82304087. The next prime is 82304099. The reversal of 82304091 is 19040328.

It is not a de Polignac number, because 82304091 - 2² = 82304087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82304099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4572441 + ... + 4572458.

It is an arithmetic number, because the mean of its divisors is an integer number (19813950).

Almost surely, 2^82304091 is an apocalyptic number.

82304091 is a deficient number, since it is larger than the sum of its proper divisors (36579609).

82304091 is a wasteful number, since it uses less digits than its factorization.

82304091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9144905 (or 9144902 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 82304091 is about 9072.1602168392. The cubic root of 82304091 is about 434.9845258071.

It can be divided in two parts, 8230 and 4091, that added together give a palindrome (12321).

The spelling of 82304091 in words is "eighty-two million, three hundred four thousand, ninety-one".