86508587 has 6 divisors (see below), whose sum is σ = 95088084. Its totient is φ = 78644060.

The previous prime is 86508581. The next prime is 86508599. The reversal of 86508587 is 78580568.

It is not a de Polignac number, because 86508587 - 2⁴ = 86508571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86508581) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357353 + ... + 357594.

It is an arithmetic number, because the mean of its divisors is an integer number (15848014).

Almost surely, 2^86508587 is an apocalyptic number.

86508587 is a deficient number, since it is larger than the sum of its proper divisors (8579497).

86508587 is a wasteful number, since it uses less digits than its factorization.

86508587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714969 (or 714958 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 47.

The square root of 86508587 is about 9300.9992473927. Note that the first 3 decimals coincide. The cubic root of 86508587 is about 442.2689050483.

The spelling of 86508587 in words is "eighty-six million, five hundred eight thousand, five hundred eighty-seven".