85711842 has 12 divisors (see below), whose sum is σ = 185709030. Its totient is φ = 28570608.

The previous prime is 85711817. The next prime is 85711877. The reversal of 85711842 is 24811758.

85711842 is a `hidden beast` number, since 8 + 571 + 1 + 84 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 78694641 + 7017201 = 8871^2 + 2649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85711797 and 85711806.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2380867 + ... + 2380902.

Almost surely, 2^85711842 is an apocalyptic number.

85711842 is an abundant number, since it is smaller than the sum of its proper divisors (99997188).

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

85711842 is a wasteful number, since it uses less digits than its factorization.

85711842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4761777 (or 4761774 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 85711842 is about 9258.0690211296. The cubic root of 85711842 is about 440.9069481430.

The spelling of 85711842 in words is "eighty-five million, seven hundred eleven thousand, eight hundred forty-two".