86509417 has 4 divisors (see below), whose sum is σ = 90270720. Its totient is φ = 82748116.

The previous prime is 86509373. The next prime is 86509459. The reversal of 86509417 is 71490568.

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 86509417 - 2⁷ = 86509289 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 86509417.

It is not an unprimeable number, because it can be changed into a prime (86509477) 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 3 ways as a sum of consecutive naturals, for example, 1880617 + ... + 1880662.

It is an arithmetic number, because the mean of its divisors is an integer number (22567680).

Almost surely, 2^86509417 is an apocalyptic number.

It is an amenable number.

86509417 is a deficient number, since it is larger than the sum of its proper divisors (3761303).

86509417 is a wasteful number, since it uses less digits than its factorization.

86509417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761302.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 86509417 is about 9301.0438661475. The cubic root of 86509417 is about 442.2703194822.

The spelling of 86509417 in words is "eighty-six million, five hundred nine thousand, four hundred seventeen".