82688411 has 4 divisors (see below), whose sum is σ = 89049072. Its totient is φ = 76327752.

The previous prime is 82688407. The next prime is 82688413. The reversal of 82688411 is 11488628.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82688411 - 2² = 82688407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82688413) by changing a digit.

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, 3180311 + ... + 3180336.

It is an arithmetic number, because the mean of its divisors is an integer number (22262268).

Almost surely, 2^82688411 is an apocalyptic number.

82688411 is a deficient number, since it is larger than the sum of its proper divisors (6360661).

82688411 is a wasteful number, since it uses less digits than its factorization.

82688411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360660.

The product of its digits is 24576, while the sum is 38.

The square root of 82688411 is about 9093.3168316077. The cubic root of 82688411 is about 435.6605299521.

The spelling of 82688411 in words is "eighty-two million, six hundred eighty-eight thousand, four hundred eleven".