8347989 has 8 divisors (see below), whose sum is σ = 11986912. Its totient is φ = 5137200.

The previous prime is 8347987. The next prime is 8347991. The reversal of 8347989 is 9897438.

It is an interprime number because it is at equal distance from previous prime (8347987) and next prime (8347991).

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

It is not a de Polignac number, because 8347989 - 2¹ = 8347987 is a prime.

It is a Duffinian number.

8347989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8347981) 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, 106987 + ... + 107064.

It is an arithmetic number, because the mean of its divisors is an integer number (1498364).

Almost surely, 2^8347989 is an apocalyptic number.

It is an amenable number.

8347989 is a deficient number, since it is larger than the sum of its proper divisors (3638923).

8347989 is a wasteful number, since it uses less digits than its factorization.

8347989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214067.

The product of its digits is 435456, while the sum is 48.

The square root of 8347989 is about 2889.2886667829. The cubic root of 8347989 is about 202.8588485465.

The spelling of 8347989 in words is "eight million, three hundred forty-seven thousand, nine hundred eighty-nine".