86869866 has 16 divisors (see below), whose sum is σ = 173831904. Its totient is φ = 28941264.

The previous prime is 86869859. The next prime is 86869903. The reversal of 86869866 is 66896868.

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, 17760 + ... + 22116.

It is an arithmetic number, because the mean of its divisors is an integer number (10864494).

Almost surely, 2^86869866 is an apocalyptic number.

86869866 is an abundant number, since it is smaller than the sum of its proper divisors (86962038).

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

86869866 is a wasteful number, since it uses less digits than its factorization.

86869866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7685.

The product of its digits is 5971968, while the sum is 57.

The square root of 86869866 is about 9320.4005278743. The cubic root of 86869866 is about 442.8837209063.

The spelling of 86869866 in words is "eighty-six million, eight hundred sixty-nine thousand, eight hundred sixty-six".