9867664 has 10 divisors (see below), whose sum is σ = 19118630. Its totient is φ = 4933824.

The previous prime is 9867659. The next prime is 9867677. The reversal of 9867664 is 4667689.

It can be written as a sum of positive squares in only one way, i.e., 6656400 + 3211264 = 2580^2 + 1792^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308349 + ... + 308380.

It is an arithmetic number, because the mean of its divisors is an integer number (1911863).

Almost surely, 2^9867664 is an apocalyptic number.

It is an amenable number.

9867664 is a deficient number, since it is larger than the sum of its proper divisors (9250966).

9867664 is a wasteful number, since it uses less digits than its factorization.

9867664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616737 (or 616731 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 9867664 is about 3141.2838139843. The cubic root of 9867664 is about 214.4888814300.

The spelling of 9867664 in words is "nine million, eight hundred sixty-seven thousand, six hundred sixty-four".