86554665 has 12 divisors (see below), whose sum is σ = 150028164. Its totient is φ = 46162464.

The previous prime is 86554661. The next prime is 86554673. The reversal of 86554665 is 56645568.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39275289 + 47279376 = 6267^2 + 6876^2 .

It is not a de Polignac number, because 86554665 - 2² = 86554661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1923437 = 86554665 / (8 + 6 + 5 + 5 + 4 + 6 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 86554665.

It is not an unprimeable number, because it can be changed into a prime (86554661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 961674 + ... + 961763.

It is an arithmetic number, because the mean of its divisors is an integer number (12502347).

Almost surely, 2^86554665 is an apocalyptic number.

It is an amenable number.

86554665 is a deficient number, since it is larger than the sum of its proper divisors (63473499).

86554665 is a wasteful number, since it uses less digits than its factorization.

86554665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923448 (or 1923445 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The square root of 86554665 is about 9303.4759633161. The cubic root of 86554665 is about 442.3474145936.

The spelling of 86554665 in words is "eighty-six million, five hundred fifty-four thousand, six hundred sixty-five".