85785282 has 24 divisors (see below), whose sum is σ = 202765680. Its totient is φ = 25995480.

The previous prime is 85785269. The next prime is 85785283. The reversal of 85785282 is 28258758.

It is a super-2 number, since 2×85785282² = 14718229215639048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85785283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216432 + ... + 216827.

It is an arithmetic number, because the mean of its divisors is an integer number (8448570).

Almost surely, 2^85785282 is an apocalyptic number.

85785282 is an abundant number, since it is smaller than the sum of its proper divisors (116980398).

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

85785282 is a wasteful number, since it uses less digits than its factorization.

85785282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433278 (or 433275 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 85785282 is about 9262.0344417412. The cubic root of 85785282 is about 441.0328388090.

The spelling of 85785282 in words is "eighty-five million, seven hundred eighty-five thousand, two hundred eighty-two".