86843860 has 24 divisors (see below), whose sum is σ = 190302336. Its totient is φ = 33227040.

The previous prime is 86843857. The next prime is 86843873. The reversal of 86843860 is 6834868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93936 + ... + 94855.

It is an arithmetic number, because the mean of its divisors is an integer number (7929264).

Almost surely, 2^86843860 is an apocalyptic number.

It is an amenable number.

86843860 is an abundant number, since it is smaller than the sum of its proper divisors (103458476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86843860 is a wasteful number, since it uses less digits than its factorization.

86843860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188823 (or 188821 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 86843860 is about 9319.0053117272. The cubic root of 86843860 is about 442.8395215227.

It can be divided in two parts, 8684 and 3860, that added together give a square (12544 = 112²).

The spelling of 86843860 in words is "eighty-six million, eight hundred forty-three thousand, eight hundred sixty".