82645693 has 16 divisors (see below), whose sum is σ = 94864896. Its totient is φ = 71406720.

The previous prime is 82645691. The next prime is 82645711. The reversal of 82645693 is 39654628.

It is not a de Polignac number, because 82645693 - 2¹ = 82645691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82645691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11113 + ... + 16993.

It is an arithmetic number, because the mean of its divisors is an integer number (5929056).

Almost surely, 2^82645693 is an apocalyptic number.

It is an amenable number.

82645693 is a deficient number, since it is larger than the sum of its proper divisors (12219203).

82645693 is a wasteful number, since it uses less digits than its factorization.

82645693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964.

The product of its digits is 311040, while the sum is 43.

The square root of 82645693 is about 9090.9676602659. The cubic root of 82645693 is about 435.5854942365.

It can be divided in two parts, 82645 and 693, that added together give a palindrome (83338).

The spelling of 82645693 in words is "eighty-two million, six hundred forty-five thousand, six hundred ninety-three".