86999866 has 8 divisors (see below), whose sum is σ = 132711840. Its totient is φ = 42762588.

The previous prime is 86999849. The next prime is 86999873. The reversal of 86999866 is 66899968.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 368526 + ... + 368761.

It is an arithmetic number, because the mean of its divisors is an integer number (16588980).

Almost surely, 2^86999866 is an apocalyptic number.

86999866 is a deficient number, since it is larger than the sum of its proper divisors (45711974).

86999866 is a wasteful number, since it uses less digits than its factorization.

86999866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737348.

The product of its digits is 10077696, while the sum is 61.

The square root of 86999866 is about 9327.3718699321. The cubic root of 86999866 is about 443.1045346748.

The spelling of 86999866 in words is "eighty-six million, nine hundred ninety-nine thousand, eight hundred sixty-six".