85855842 has 16 divisors (see below), whose sum is σ = 190790880. Its totient is φ = 28618596.

The previous prime is 85855807. The next prime is 85855843. The reversal of 85855842 is 24855858.

85855842 is a `hidden beast` number, since 8 + 58 + 558 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (85855843) 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, 794908 + ... + 795015.

It is an arithmetic number, because the mean of its divisors is an integer number (11924430).

Almost surely, 2^85855842 is an apocalyptic number.

85855842 is an abundant number, since it is smaller than the sum of its proper divisors (104935038).

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

85855842 is a wasteful number, since it uses less digits than its factorization.

85855842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589934 (or 1589928 counting only the distinct ones).

The product of its digits is 512000, while the sum is 45.

The square root of 85855842 is about 9265.8427571376. The cubic root of 85855842 is about 441.1537249261.

The spelling of 85855842 in words is "eighty-five million, eight hundred fifty-five thousand, eight hundred forty-two".