82195805 has 16 divisors (see below), whose sum is σ = 104387520. Its totient is φ = 61959168.

The previous prime is 82195781. The next prime is 82195811. The reversal of 82195805 is 50859128.

It is a cyclic number.

It is not a de Polignac number, because 82195805 - 2⁶ = 82195741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16094 + ... + 20576.

It is an arithmetic number, because the mean of its divisors is an integer number (6524220).

Almost surely, 2^82195805 is an apocalyptic number.

It is an amenable number.

82195805 is a deficient number, since it is larger than the sum of its proper divisors (22191715).

82195805 is a wasteful number, since it uses less digits than its factorization.

82195805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4700.

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 82195805 is about 9066.1902141969. The cubic root of 82195805 is about 434.7936749988.

The spelling of 82195805 in words is "eighty-two million, one hundred ninety-five thousand, eight hundred five".