85828291 has 4 divisors (see below), whose sum is σ = 90877032. Its totient is φ = 80779552.

The previous prime is 85828277. The next prime is 85828357. The reversal of 85828291 is 19282858.

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 85828291 - 2¹⁹ = 85304003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85828261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524345 + ... + 2524378.

It is an arithmetic number, because the mean of its divisors is an integer number (22719258).

Almost surely, 2^85828291 is an apocalyptic number.

85828291 is a deficient number, since it is larger than the sum of its proper divisors (5048741).

85828291 is a wasteful number, since it uses less digits than its factorization.

85828291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048740.

The product of its digits is 92160, while the sum is 43.

The square root of 85828291 is about 9264.3559409168. The cubic root of 85828291 is about 441.1065313735.

The spelling of 85828291 in words is "eighty-five million, eight hundred twenty-eight thousand, two hundred ninety-one".