82795817 has 8 divisors (see below), whose sum is σ = 89242440. Its totient is φ = 76360320.

The previous prime is 82795793. The next prime is 82795879. The reversal of 82795817 is 71859728.

It can be written as a sum of positive squares in 4 ways, for example, as 1597696 + 81198121 = 1264^2 + 9011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82795817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82791817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19109 + ... + 23037.

It is an arithmetic number, because the mean of its divisors is an integer number (11155305).

Almost surely, 2^82795817 is an apocalyptic number.

It is an amenable number.

82795817 is a deficient number, since it is larger than the sum of its proper divisors (6446623).

82795817 is a wasteful number, since it uses less digits than its factorization.

82795817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5563.

The product of its digits is 282240, while the sum is 47.

The square root of 82795817 is about 9099.2206809155. The cubic root of 82795817 is about 435.8490783791.

The spelling of 82795817 in words is "eighty-two million, seven hundred ninety-five thousand, eight hundred seventeen".