85863577 has 18 divisors (see below), whose sum is σ = 93442622. Its totient is φ = 78887424.

The previous prime is 85863559. The next prime is 85863601. The reversal of 85863577 is 77536858.

It can be written as a sum of positive squares in 3 ways, for example, as 6635776 + 79227801 = 2576^2 + 8901^2 .

It is a de Polignac number, because none of the positive numbers 2^k-85863577 is a prime.

It is a Duffinian number.

Its product of digits (1411200) is a multiple of the sum of its prime divisors (245).

It is a self number, because there is not a number n which added to its sum of digits gives 85863577.

It is not an unprimeable number, because it can be changed into a prime (85863077) 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 17 ways as a sum of consecutive naturals, for example, 444793 + ... + 444985.

Almost surely, 2^85863577 is an apocalyptic number.

It is an amenable number.

85863577 is a deficient number, since it is larger than the sum of its proper divisors (7579045).

85863577 is a wasteful number, since it uses less digits than its factorization.

85863577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 245 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 49.

The square root of 85863577 is about 9266.2601409630. The cubic root of 85863577 is about 441.1669727981.

The spelling of 85863577 in words is "eighty-five million, eight hundred sixty-three thousand, five hundred seventy-seven".