86584861 has 4 divisors (see below), whose sum is σ = 94456224. Its totient is φ = 78713500.

The previous prime is 86584831. The next prime is 86584867. The reversal of 86584861 is 16848568.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86584861 - 2¹¹ = 86582813 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 (86584867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3935665 + ... + 3935686.

It is an arithmetic number, because the mean of its divisors is an integer number (23614056).

Almost surely, 2^86584861 is an apocalyptic number.

It is an amenable number.

86584861 is a deficient number, since it is larger than the sum of its proper divisors (7871363).

86584861 is a wasteful number, since it uses less digits than its factorization.

86584861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871362.

The product of its digits is 368640, while the sum is 46.

The square root of 86584861 is about 9305.0986561132. The cubic root of 86584861 is about 442.3988486384.

The spelling of 86584861 in words is "eighty-six million, five hundred eighty-four thousand, eight hundred sixty-one".