859085090 has 16 divisors (see below), whose sum is σ = 1568134080. Its totient is φ = 338793840.

The previous prime is 859085077. The next prime is 859085107. The reversal of 859085090 is 90580958.

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 7 ways as a sum of consecutive naturals, for example, 604280 + ... + 605699.

It is an arithmetic number, because the mean of its divisors is an integer number (98008380).

Almost surely, 2^859085090 is an apocalyptic number.

859085090 is a deficient number, since it is larger than the sum of its proper divisors (709048990).

859085090 is a wasteful number, since it uses less digits than its factorization.

859085090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210057.

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 859085090 is about 29310.1533602266. The cubic root of 859085090 is about 950.6311927226.

The spelling of 859085090 in words is "eight hundred fifty-nine million, eighty-five thousand, ninety".