9866504 has 8 divisors (see below), whose sum is σ = 18499710. Its totient is φ = 4933248.

The previous prime is 9866501. The next prime is 9866509. The reversal of 9866504 is 4056689.

It can be written as a sum of positive squares in only one way, i.e., 9060100 + 806404 = 3010^2 + 898^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (9866501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616649 + ... + 616664.

Almost surely, 2^9866504 is an apocalyptic number.

It is an amenable number.

9866504 is a deficient number, since it is larger than the sum of its proper divisors (8633206).

9866504 is a wasteful number, since it uses less digits than its factorization.

9866504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233319 (or 1233315 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 9866504 is about 3141.0991706726. The cubic root of 9866504 is about 214.4804763049.

The spelling of 9866504 in words is "nine million, eight hundred sixty-six thousand, five hundred four".