85985286 has 16 divisors (see below), whose sum is σ = 182086704. Its totient is φ = 26975744.

The previous prime is 85985267. The next prime is 85985287. The reversal of 85985286 is 68258958.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85985287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421395 + ... + 421598.

It is an arithmetic number, because the mean of its divisors is an integer number (11380419).

Almost surely, 2^85985286 is an apocalyptic number.

85985286 is an abundant number, since it is smaller than the sum of its proper divisors (96101418).

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

85985286 is a wasteful number, since it uses less digits than its factorization.

85985286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843015.

The product of its digits is 1382400, while the sum is 51.

The square root of 85985286 is about 9272.8251358472. The cubic root of 85985286 is about 441.3753212933.

The spelling of 85985286 in words is "eighty-five million, nine hundred eighty-five thousand, two hundred eighty-six".