86528587 has 8 divisors (see below), whose sum is σ = 87333120. Its totient is φ = 85727400.

The previous prime is 86528581. The next prime is 86528591. The reversal of 86528587 is 78582568.

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 86528587 - 2¹⁹ = 86004299 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86528587.

It is not an unprimeable number, because it can be changed into a prime (86528581) 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 7 ways as a sum of consecutive naturals, for example, 102714 + ... + 103552.

It is an arithmetic number, because the mean of its divisors is an integer number (10916640).

Almost surely, 2^86528587 is an apocalyptic number.

86528587 is a deficient number, since it is larger than the sum of its proper divisors (804533).

86528587 is a wasteful number, since it uses less digits than its factorization.

86528587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673.

The product of its digits is 1075200, while the sum is 49.

The square root of 86528587 is about 9302.0743385548. The cubic root of 86528587 is about 442.3029852741.

The spelling of 86528587 in words is "eighty-six million, five hundred twenty-eight thousand, five hundred eighty-seven".