85739885 has 32 divisors (see below), whose sum is σ = 129945600. Its totient is φ = 52752960.

The previous prime is 85739873. The next prime is 85739903. The reversal of 85739885 is 58893758.

It is not a de Polignac number, because 85739885 - 2¹⁶ = 85674349 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 29006 + ... + 31824.

It is an arithmetic number, because the mean of its divisors is an integer number (4060800).

Almost surely, 2^85739885 is an apocalyptic number.

It is an amenable number.

85739885 is a deficient number, since it is larger than the sum of its proper divisors (44205715).

85739885 is a wasteful number, since it uses less digits than its factorization.

85739885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921.

The product of its digits is 2419200, while the sum is 53.

The square root of 85739885 is about 9259.5834139555. The cubic root of 85739885 is about 440.9550278679.

The spelling of 85739885 in words is "eighty-five million, seven hundred thirty-nine thousand, eight hundred eighty-five".