86485869 has 12 divisors (see below), whose sum is σ = 125080956. Its totient is φ = 57584832.

The previous prime is 86485837. The next prime is 86485873. The reversal of 86485869 is 96858468.

It is a happy number.

86485869 is a `hidden beast` number, since 86 + 485 + 86 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40068900 + 46416969 = 6330^2 + 6813^2 .

It is not a de Polignac number, because 86485869 - 2⁵ = 86485837 is a prime.

It is a super-2 number, since 2×86485869² = 14959611073370322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86485369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2107 + ... + 13319.

It is an arithmetic number, because the mean of its divisors is an integer number (10423413).

Almost surely, 2^86485869 is an apocalyptic number.

It is an amenable number.

86485869 is a deficient number, since it is larger than the sum of its proper divisors (38595087).

86485869 is a wasteful number, since it uses less digits than its factorization.

86485869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12076 (or 12073 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 86485869 is about 9299.7779005738. Note that the first 3 decimals coincide. The cubic root of 86485869 is about 442.2301869473.

The spelling of 86485869 in words is "eighty-six million, four hundred eighty-five thousand, eight hundred sixty-nine".