85783864 has 16 divisors (see below), whose sum is σ = 161736120. Its totient is φ = 42654240.

The previous prime is 85783861. The next prime is 85783889. The reversal of 85783864 is 46838758.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85783861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28174 + ... + 31069.

Almost surely, 2^85783864 is an apocalyptic number.

It is an amenable number.

85783864 is a deficient number, since it is larger than the sum of its proper divisors (75952256).

85783864 is a wasteful number, since it uses less digits than its factorization.

85783864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59430 (or 59426 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The square root of 85783864 is about 9261.9578923681. The cubic root of 85783864 is about 441.0304087573.

The spelling of 85783864 in words is "eighty-five million, seven hundred eighty-three thousand, eight hundred sixty-four".