85643504 has 20 divisors (see below), whose sum is σ = 166102464. Its totient is φ = 42778368.

The previous prime is 85643497. The next prime is 85643521. The reversal of 85643504 is 40534658.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18689 + ... + 22815.

Almost surely, 2^85643504 is an apocalyptic number.

It is an amenable number.

85643504 is a deficient number, since it is larger than the sum of its proper divisors (80458960).

85643504 is a wasteful number, since it uses less digits than its factorization.

85643504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432 (or 5426 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 85643504 is about 9254.3775587556. The cubic root of 85643504 is about 440.7897387058.

The spelling of 85643504 in words is "eighty-five million, six hundred forty-three thousand, five hundred four".