85745873 has 4 divisors (see below), whose sum is σ = 86920548. Its totient is φ = 84571200.

The previous prime is 85745861. The next prime is 85745899. The reversal of 85745873 is 37854758.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37854758 = 2 ⋅18927379.

It can be written as a sum of positive squares in 2 ways, for example, as 50794129 + 34951744 = 7127^2 + 5912^2 .

It is a cyclic number.

It is not a de Polignac number, because 85745873 - 2⁴ = 85745857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85745843) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 587228 + ... + 587373.

It is an arithmetic number, because the mean of its divisors is an integer number (21730137).

Almost surely, 2^85745873 is an apocalyptic number.

It is an amenable number.

85745873 is a deficient number, since it is larger than the sum of its proper divisors (1174675).

85745873 is a wasteful number, since it uses less digits than its factorization.

85745873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174674.

The product of its digits is 940800, while the sum is 47.

The square root of 85745873 is about 9259.9067489905. The cubic root of 85745873 is about 440.9652929359.

The spelling of 85745873 in words is "eighty-five million, seven hundred forty-five thousand, eight hundred seventy-three".