82309693 has 2 divisors, whose sum is σ = 82309694. Its totient is φ = 82309692.

The previous prime is 82309687. The next prime is 82309741. The reversal of 82309693 is 39690328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71267364 + 11042329 = 8442^2 + 3323^2 .

It is a cyclic number.

It is not a de Polignac number, because 82309693 - 2¹³ = 82301501 is a prime.

It is equal to p_4796329 and since 82309693 and 4796329 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82309993) 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 as a sum of consecutive naturals, namely, 41154846 + 41154847.

It is an arithmetic number, because the mean of its divisors is an integer number (41154847).

Almost surely, 2^82309693 is an apocalyptic number.

It is an amenable number.

82309693 is a deficient number, since it is larger than the sum of its proper divisors (1).

82309693 is an equidigital number, since it uses as much as digits as its factorization.

82309693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 82309693 is about 9072.4689583376. The cubic root of 82309693 is about 434.9943946078.

The spelling of 82309693 in words is "eighty-two million, three hundred nine thousand, six hundred ninety-three".