86665930 has 32 divisors (see below), whose sum is σ = 168537600. Its totient is φ = 31897152.

The previous prime is 86665927. The next prime is 86665939. The reversal of 86665930 is 3956668.

It is not an unprimeable number, because it can be changed into a prime (86665939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48391 + ... + 50149.

It is an arithmetic number, because the mean of its divisors is an integer number (5266800).

Almost surely, 2^86665930 is an apocalyptic number.

86665930 is a deficient number, since it is larger than the sum of its proper divisors (81871670).

86665930 is a wasteful number, since it uses less digits than its factorization.

86665930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 86665930 is about 9309.4537970818. The cubic root of 86665930 is about 442.5368775590.

The spelling of 86665930 in words is "eighty-six million, six hundred sixty-five thousand, nine hundred thirty".