85542786 has 48 divisors (see below), whose sum is σ = 215002944. Its totient is φ = 24073632.

The previous prime is 85542763. The next prime is 85542797. The reversal of 85542786 is 68724558.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3376 + ... + 13508.

It is an arithmetic number, because the mean of its divisors is an integer number (4479228).

Almost surely, 2^85542786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85542786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107501472).

85542786 is an abundant number, since it is smaller than the sum of its proper divisors (129460158).

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

85542786 is a wasteful number, since it uses less digits than its factorization.

85542786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215 (or 10212 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 85542786 is about 9248.9343169903. The cubic root of 85542786 is about 440.6168792226.

The spelling of 85542786 in words is "eighty-five million, five hundred forty-two thousand, seven hundred eighty-six".