86859856 has 20 divisors (see below), whose sum is σ = 168482272. Its totient is φ = 43380576.

The previous prime is 86859847. The next prime is 86859863. The reversal of 86859856 is 65895868.

It is a junction number, because it is equal to n+sod(n) for n = 86859797 and 86859806.

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, 14455 + ... + 19561.

Almost surely, 2^86859856 is an apocalyptic number.

It is an amenable number.

86859856 is a deficient number, since it is larger than the sum of its proper divisors (81622416).

86859856 is a wasteful number, since it uses less digits than its factorization.

86859856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6178 (or 6172 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 55.

The square root of 86859856 is about 9319.8635183140. The cubic root of 86859856 is about 442.8667091140.

The spelling of 86859856 in words is "eighty-six million, eight hundred fifty-nine thousand, eight hundred fifty-six".