86408209 has 8 divisors (see below), whose sum is σ = 89215488. Its totient is φ = 83625840.

The previous prime is 86408183. The next prime is 86408213. The reversal of 86408209 is 90280468.

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 86408209 - 2¹¹ = 86406161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86408249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954 + ... + 13180.

It is an arithmetic number, because the mean of its divisors is an integer number (11151936).

Almost surely, 2^86408209 is an apocalyptic number.

It is an amenable number.

86408209 is a deficient number, since it is larger than the sum of its proper divisors (2807279).

86408209 is a wasteful number, since it uses less digits than its factorization.

86408209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12455.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 86408209 is about 9295.6015943025. The cubic root of 86408209 is about 442.0977804187.

The spelling of 86408209 in words is "eighty-six million, four hundred eight thousand, two hundred nine".