82868091 has 8 divisors (see below), whose sum is σ = 110950224. Its totient is φ = 55015680.

The previous prime is 82868089. The next prime is 82868099. The reversal of 82868091 is 19086828.

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

It is not a de Polignac number, because 82868091 - 2¹ = 82868089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82868099) 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 7 ways as a sum of consecutive naturals, for example, 56586 + ... + 58031.

It is an arithmetic number, because the mean of its divisors is an integer number (13868778).

Almost surely, 2^82868091 is an apocalyptic number.

82868091 is a deficient number, since it is larger than the sum of its proper divisors (28082133).

82868091 is a wasteful number, since it uses less digits than its factorization.

82868091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114861.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 82868091 is about 9103.1912536209. The cubic root of 82868091 is about 435.9758617364.

The spelling of 82868091 in words is "eighty-two million, eight hundred sixty-eight thousand, ninety-one".