82686411 has 24 divisors (see below), whose sum is σ = 121177056. Its totient is φ = 54328320.

The previous prime is 82686407. The next prime is 82686421. The reversal of 82686411 is 11468628.

82686411 is a `hidden beast` number, since 8 + 2 + 6 + 8 + 641 + 1 = 666.

It is not a de Polignac number, because 82686411 - 2² = 82686407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82686421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314266 + ... + 314528.

It is an arithmetic number, because the mean of its divisors is an integer number (5049044).

Almost surely, 2^82686411 is an apocalyptic number.

82686411 is a deficient number, since it is larger than the sum of its proper divisors (38490645).

82686411 is a wasteful number, since it uses less digits than its factorization.

82686411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 640 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 82686411 is about 9093.2068600687. The cubic root of 82686411 is about 435.6570174563.

The spelling of 82686411 in words is "eighty-two million, six hundred eighty-six thousand, four hundred eleven".