82863805 has 4 divisors (see below), whose sum is σ = 99436572. Its totient is φ = 66291040.

The previous prime is 82863793. The next prime is 82863827. The reversal of 82863805 is 50836828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20169081 + 62694724 = 4491^2 + 7918^2 .

It is not a de Polignac number, because 82863805 - 2¹³ = 82855613 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8286376 + ... + 8286385.

It is an arithmetic number, because the mean of its divisors is an integer number (24859143).

Almost surely, 2^82863805 is an apocalyptic number.

It is an amenable number.

82863805 is a deficient number, since it is larger than the sum of its proper divisors (16572767).

82863805 is a wasteful number, since it uses less digits than its factorization.

82863805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16572766.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 82863805 is about 9102.9558386274. The cubic root of 82863805 is about 435.9683452736.

The spelling of 82863805 in words is "eighty-two million, eight hundred sixty-three thousand, eight hundred five".