8470989 has 6 divisors (see below), whose sum is σ = 12235886. Its totient is φ = 5647320.

The previous prime is 8470927. The next prime is 8471053. The reversal of 8470989 is 9890748.

It can be written as a sum of positive squares in only one way, i.e., 4796100 + 3674889 = 2190^2 + 1917^2 .

It is not a de Polignac number, because 8470989 - 2²⁰ = 7422413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8470919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470602 + ... + 470619.

Almost surely, 2^8470989 is an apocalyptic number.

It is an amenable number.

8470989 is a deficient number, since it is larger than the sum of its proper divisors (3764897).

8470989 is a wasteful number, since it uses less digits than its factorization.

8470989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941227 (or 941224 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 8470989 is about 2910.4963494222. The cubic root of 8470989 is about 203.8503082941.

The spelling of 8470989 in words is "eight million, four hundred seventy thousand, nine hundred eighty-nine".