82893805 has 4 divisors (see below), whose sum is σ = 99472572. Its totient is φ = 66315040.

The previous prime is 82893791. The next prime is 82893829. The reversal of 82893805 is 50839828.

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 10949481 + 71944324 = 3309^2 + 8482^2 .

It is not a de Polignac number, because 82893805 - 2⁵ = 82893773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 8289376 + ... + 8289385.

It is an arithmetic number, because the mean of its divisors is an integer number (24868143).

Almost surely, 2^82893805 is an apocalyptic number.

It is an amenable number.

82893805 is a deficient number, since it is larger than the sum of its proper divisors (16578767).

82893805 is a wasteful number, since it uses less digits than its factorization.

82893805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16578766.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 82893805 is about 9104.6035059194. The cubic root of 82893805 is about 436.0209515645.

The spelling of 82893805 in words is "eighty-two million, eight hundred ninety-three thousand, eight hundred five".