86817659 has 8 divisors (see below), whose sum is σ = 88297392. Its totient is φ = 85345920.

The previous prime is 86817649. The next prime is 86817667. The reversal of 86817659 is 95671868.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86817659 - 2¹⁶ = 86752123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86817629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22367 + ... + 25959.

It is an arithmetic number, because the mean of its divisors is an integer number (11037174).

Almost surely, 2^86817659 is an apocalyptic number.

86817659 is a deficient number, since it is larger than the sum of its proper divisors (1479733).

86817659 is a wasteful number, since it uses less digits than its factorization.

86817659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997.

The product of its digits is 725760, while the sum is 50.

The square root of 86817659 is about 9317.5994225981. The cubic root of 86817659 is about 442.7949817960.

The spelling of 86817659 in words is "eighty-six million, eight hundred seventeen thousand, six hundred fifty-nine".