85071090 has 32 divisors (see below), whose sum is σ = 219877056. Its totient is φ = 20940480.

The previous prime is 85071067. The next prime is 85071127. The reversal of 85071090 is 9017058.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108676 + ... + 109455.

It is an arithmetic number, because the mean of its divisors is an integer number (6871158).

Almost surely, 2^85071090 is an apocalyptic number.

85071090 is an abundant number, since it is smaller than the sum of its proper divisors (134805966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85071090 is a wasteful number, since it uses less digits than its factorization.

85071090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218154.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 85071090 is about 9223.3990480733. The cubic root of 85071090 is about 439.8055097735.

The spelling of 85071090 in words is "eighty-five million, seventy-one thousand, ninety".