82492321 has 2 divisors, whose sum is σ = 82492322. Its totient is φ = 82492320.

The previous prime is 82492309. The next prime is 82492331. The reversal of 82492321 is 12329428.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82174225 + 318096 = 9065^2 + 564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82492321 is a prime.

It is not a weakly prime, because it can be changed into another prime (82492331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41246160 + 41246161.

It is an arithmetic number, because the mean of its divisors is an integer number (41246161).

Almost surely, 2^82492321 is an apocalyptic number.

It is an amenable number.

82492321 is a deficient number, since it is larger than the sum of its proper divisors (1).

82492321 is an equidigital number, since it uses as much as digits as its factorization.

82492321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 82492321 is about 9082.5283374179. The cubic root of 82492321 is about 435.3158774958.

The spelling of 82492321 in words is "eighty-two million, four hundred ninety-two thousand, three hundred twenty-one".