86536566 has 16 divisors (see below), whose sum is σ = 192303600. Its totient is φ = 28845504.

The previous prime is 86536559. The next prime is 86536573. The reversal of 86536566 is 66563568.

86536566 is a `hidden beast` number, since 86 + 5 + 3 + 6 + 566 = 666.

It is an interprime number because it is at equal distance from previous prime (86536559) and next prime (86536573).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 801211 + ... + 801318.

It is an arithmetic number, because the mean of its divisors is an integer number (12018975).

Almost surely, 2^86536566 is an apocalyptic number.

86536566 is an abundant number, since it is smaller than the sum of its proper divisors (105767034).

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

86536566 is a wasteful number, since it uses less digits than its factorization.

86536566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602540 (or 1602534 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 86536566 is about 9302.5032115017. The cubic root of 86536566 is about 442.3165801148.

The spelling of 86536566 in words is "eighty-six million, five hundred thirty-six thousand, five hundred sixty-six".