85807286 has 8 divisors (see below), whose sum is σ = 128766000. Its totient is φ = 42885288.

The previous prime is 85807261. The next prime is 85807321. The reversal of 85807286 is 68270858.

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

It is a congruent number.

It is an unprimeable number.

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, 2306 + ... + 13301.

It is an arithmetic number, because the mean of its divisors is an integer number (16095750).

Almost surely, 2^85807286 is an apocalyptic number.

85807286 is a deficient number, since it is larger than the sum of its proper divisors (42958714).

85807286 is a wasteful number, since it uses less digits than its factorization.

85807286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18358.

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 85807286 is about 9263.2222255541. Note that the first 5 decimals coincide. The cubic root of 85807286 is about 441.0705440219.

The spelling of 85807286 in words is "eighty-five million, eight hundred seven thousand, two hundred eighty-six".