8489999 has 4 divisors (see below), whose sum is σ = 9702864. Its totient is φ = 7277136.

The previous prime is 8489969. The next prime is 8490019. The reversal of 8489999 is 9999848.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8489999 - 2⁸ = 8489743 is a prime.

It is a Duffinian number.

8489999 is a modest number, since divided by 9999 gives 848 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8489969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606422 + ... + 606435.

It is an arithmetic number, because the mean of its divisors is an integer number (2425716).

Almost surely, 2^8489999 is an apocalyptic number.

8489999 is a deficient number, since it is larger than the sum of its proper divisors (1212865).

8489999 is a wasteful number, since it uses less digits than its factorization.

8489999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212864.

The product of its digits is 1679616, while the sum is 56.

The square root of 8489999 is about 2913.7602852671. The cubic root of 8489999 is about 204.0026832276.

The spelling of 8489999 in words is "eight million, four hundred eighty-nine thousand, nine hundred ninety-nine".