86666596 has 6 divisors (see below), whose sum is σ = 151666550. Its totient is φ = 43333296.

The previous prime is 86666563. The next prime is 86666603. The reversal of 86666596 is 69566668.

It can be written as a sum of positive squares in only one way, i.e., 81540900 + 5125696 = 9030^2 + 2264^2 .

It is a super-4 number, since 4×86666596⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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 as a sum of consecutive naturals, namely, 10833321 + ... + 10833328.

Almost surely, 2^86666596 is an apocalyptic number.

It is an amenable number.

86666596 is a deficient number, since it is larger than the sum of its proper divisors (64999954).

86666596 is a wasteful number, since it uses less digits than its factorization.

86666596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21666653 (or 21666651 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 52.

The square root of 86666596 is about 9309.4895671030. The cubic root of 86666596 is about 442.5380111410.

It can be divided in two parts, 866665 and 96, that added together give a square (866761 = 931²).

The spelling of 86666596 in words is "eighty-six million, six hundred sixty-six thousand, five hundred ninety-six".