85682891 has 4 divisors (see below), whose sum is σ = 97923312. Its totient is φ = 73442472.

The previous prime is 85682887. The next prime is 85682893. The reversal of 85682891 is 19828658.

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 85682891 - 2² = 85682887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85682893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6120200 + ... + 6120213.

It is an arithmetic number, because the mean of its divisors is an integer number (24480828).

Almost surely, 2^85682891 is an apocalyptic number.

85682891 is a deficient number, since it is larger than the sum of its proper divisors (12240421).

85682891 is a wasteful number, since it uses less digits than its factorization.

85682891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12240420.

The product of its digits is 276480, while the sum is 47.

The square root of 85682891 is about 9256.5053340880. The cubic root of 85682891 is about 440.8573006489.

The spelling of 85682891 in words is "eighty-five million, six hundred eighty-two thousand, eight hundred ninety-one".