86616559 has 8 divisors (see below), whose sum is σ = 89801712. Its totient is φ = 83482560.

The previous prime is 86616557. The next prime is 86616571. The reversal of 86616559 is 95561668.

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

It is not a de Polignac number, because 86616559 - 2¹ = 86616557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86616553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9324 + ... + 16129.

It is an arithmetic number, because the mean of its divisors is an integer number (11225214).

Almost surely, 2^86616559 is an apocalyptic number.

86616559 is a deficient number, since it is larger than the sum of its proper divisors (3185153).

86616559 is a wasteful number, since it uses less digits than its factorization.

86616559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25577.

The product of its digits is 388800, while the sum is 46.

The square root of 86616559 is about 9306.8017600033. The cubic root of 86616559 is about 442.4528282357.

The spelling of 86616559 in words is "eighty-six million, six hundred sixteen thousand, five hundred fifty-nine".