82686711 has 8 divisors (see below), whose sum is σ = 111279744. Its totient is φ = 54609080.

The previous prime is 82686701. The next prime is 82686713. The reversal of 82686711 is 11768628.

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

It is a cyclic number.

It is not a de Polignac number, because 82686711 - 2⁶ = 82686647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82686711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82686713) 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, 128475 + ... + 129116.

It is an arithmetic number, because the mean of its divisors is an integer number (13909968).

Almost surely, 2^82686711 is an apocalyptic number.

82686711 is a deficient number, since it is larger than the sum of its proper divisors (28593033).

82686711 is a wasteful number, since it uses less digits than its factorization.

82686711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257701.

The product of its digits is 32256, while the sum is 39.

The square root of 82686711 is about 9093.2233558843. The cubic root of 82686711 is about 435.6575443343.

The spelling of 82686711 in words is "eighty-two million, six hundred eighty-six thousand, seven hundred eleven".