8489870 has 16 divisors (see below), whose sum is σ = 15655248. Its totient is φ = 3312960.

The previous prime is 8489867. The next prime is 8489891. The reversal of 8489870 is 789848.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9944 + ... + 10763.

It is an arithmetic number, because the mean of its divisors is an integer number (978453).

Almost surely, 2^8489870 is an apocalyptic number.

8489870 is a deficient number, since it is larger than the sum of its proper divisors (7165378).

8489870 is a wasteful number, since it uses less digits than its factorization.

8489870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20755.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 8489870 is about 2913.7381488390. The cubic root of 8489870 is about 204.0016499931.

The spelling of 8489870 in words is "eight million, four hundred eighty-nine thousand, eight hundred seventy".