86929665 has 16 divisors (see below), whose sum is σ = 139226688. Its totient is φ = 46316096.

The previous prime is 86929621. The next prime is 86929669. The reversal of 86929665 is 56692968.

It is a cyclic number.

It is not a de Polignac number, because 86929665 - 2¹⁰ = 86928641 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86929669) 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 15 ways as a sum of consecutive naturals, for example, 16987 + ... + 21503.

It is an arithmetic number, because the mean of its divisors is an integer number (8701668).

Almost surely, 2^86929665 is an apocalyptic number.

It is an amenable number.

86929665 is a deficient number, since it is larger than the sum of its proper divisors (52297023).

86929665 is a wasteful number, since it uses less digits than its factorization.

86929665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808.

The product of its digits is 1399680, while the sum is 51.

The square root of 86929665 is about 9323.6079389901. The cubic root of 86929665 is about 442.9853208825.

The spelling of 86929665 in words is "eighty-six million, nine hundred twenty-nine thousand, six hundred sixty-five".