82811773 has 8 divisors (see below), whose sum is σ = 91613376. Its totient is φ = 74222400.

The previous prime is 82811749. The next prime is 82811779. The reversal of 82811773 is 37711828.

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-82811773 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 (82811779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52236 + ... + 53797.

It is an arithmetic number, because the mean of its divisors is an integer number (11451672).

Almost surely, 2^82811773 is an apocalyptic number.

It is an amenable number.

82811773 is a deficient number, since it is larger than the sum of its proper divisors (8801603).

82811773 is a wasteful number, since it uses less digits than its factorization.

82811773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106115.

The product of its digits is 18816, while the sum is 37.

The square root of 82811773 is about 9100.0974170610. The cubic root of 82811773 is about 435.8770748064.

The spelling of 82811773 in words is "eighty-two million, eight hundred eleven thousand, seven hundred seventy-three".