8489636 has 6 divisors (see below), whose sum is σ = 14856870. Its totient is φ = 4244816.

The previous prime is 8489633. The next prime is 8489639. The reversal of 8489636 is 6369848.

It is an interprime number because it is at equal distance from previous prime (8489633) and next prime (8489639).

It can be written as a sum of positive squares in only one way, i.e., 7840000 + 649636 = 2800^2 + 806^2 .

It is not an unprimeable number, because it can be changed into a prime (8489633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061201 + ... + 1061208.

It is an arithmetic number, because the mean of its divisors is an integer number (2476145).

Almost surely, 2^8489636 is an apocalyptic number.

It is an amenable number.

8489636 is a deficient number, since it is larger than the sum of its proper divisors (6367234).

8489636 is a wasteful number, since it uses less digits than its factorization.

8489636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122413 (or 2122411 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 8489636 is about 2913.6979939589. The cubic root of 8489636 is about 203.9997757270. Note that the first 3 decimals are identical.

The spelling of 8489636 in words is "eight million, four hundred eighty-nine thousand, six hundred thirty-six".