85211742 has 32 divisors (see below), whose sum is σ = 212477184. Its totient is φ = 22132800.

The previous prime is 85211741. The next prime is 85211761. The reversal of 85211742 is 24711258.

It is a super-2 number, since 2×85211742² = 14522081949349128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85211741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91759 + ... + 92682.

It is an arithmetic number, because the mean of its divisors is an integer number (6639912).

Almost surely, 2^85211742 is an apocalyptic number.

85211742 is an abundant number, since it is smaller than the sum of its proper divisors (127265442).

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

85211742 is a wasteful number, since it uses less digits than its factorization.

85211742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184464.

The product of its digits is 4480, while the sum is 30.

The square root of 85211742 is about 9231.0206369610. The cubic root of 85211742 is about 440.0477599672.

The spelling of 85211742 in words is "eighty-five million, two hundred eleven thousand, seven hundred forty-two".