8684389 has 8 divisors (see below), whose sum is σ = 10013760. Its totient is φ = 7377216.

The previous prime is 8684359. The next prime is 8684407. The reversal of 8684389 is 9834868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8684389 - 2⁷ = 8684261 is a prime.

It is a super-2 number, since 2×8684389² = 150837224606642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8684329) 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, 4699 + ... + 6280.

It is an arithmetic number, because the mean of its divisors is an integer number (1251720).

Almost surely, 2^8684389 is an apocalyptic number.

It is an amenable number.

8684389 is a deficient number, since it is larger than the sum of its proper divisors (1329371).

8684389 is a wasteful number, since it uses less digits than its factorization.

8684389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11099.

The product of its digits is 331776, while the sum is 46.

The square root of 8684389 is about 2946.9287402311. The cubic root of 8684389 is about 205.5479214869.

The spelling of 8684389 in words is "eight million, six hundred eighty-four thousand, three hundred eighty-nine".