86436666 has 32 divisors (see below), whose sum is σ = 196174080. Its totient is φ = 28198368.

The previous prime is 86436641. The next prime is 86436671. The reversal of 86436666 is 66663468.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14491 + ... + 19566.

It is an arithmetic number, because the mean of its divisors is an integer number (6130440).

Almost surely, 2^86436666 is an apocalyptic number.

86436666 is an abundant number, since it is smaller than the sum of its proper divisors (109737414).

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

86436666 is a wasteful number, since it uses less digits than its factorization.

86436666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34115 (or 34109 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 86436666 is about 9297.1321384608. The cubic root of 86436666 is about 442.1463074273.

The spelling of 86436666 in words is "eighty-six million, four hundred thirty-six thousand, six hundred sixty-six".