85747045 has 8 divisors (see below), whose sum is σ = 102946680. Its totient is φ = 68564160.

The previous prime is 85747037. The next prime is 85747049. The reversal of 85747045 is 54074758.

It can be written as a sum of positive squares in 4 ways, for example, as 6874884 + 78872161 = 2622^2 + 8881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 85747045 - 2³ = 85747037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85746989 and 85747007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85747049) 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 7 ways as a sum of consecutive naturals, for example, 15511 + ... + 20299.

It is an arithmetic number, because the mean of its divisors is an integer number (12868335).

Almost surely, 2^85747045 is an apocalyptic number.

It is an amenable number.

85747045 is a deficient number, since it is larger than the sum of its proper divisors (17199635).

85747045 is a wasteful number, since it uses less digits than its factorization.

85747045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 85747045 is about 9259.9700323489. The cubic root of 85747045 is about 440.9673020081.

The spelling of 85747045 in words is "eighty-five million, seven hundred forty-seven thousand, forty-five".