9867904 has 16 divisors (see below), whose sum is σ = 19658970. Its totient is φ = 4933888.

The previous prime is 9867883. The next prime is 9867929. The reversal of 9867904 is 4097689.

It can be written as a sum of positive squares in only one way, i.e., 9290304 + 577600 = 3048^2 + 760^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an Ulam number.

It is a pancake number, because a pancake can be divided into 9867904 parts by 4442 straight cuts.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38419 + ... + 38674.

Almost surely, 2^9867904 is an apocalyptic number.

It is an amenable number.

9867904 is a deficient number, since it is larger than the sum of its proper divisors (9791066).

9867904 is an equidigital number, since it uses as much as digits as its factorization.

9867904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77107 (or 77095 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 9867904 is about 3141.3220146938. The cubic root of 9867904 is about 214.4906203392.

The spelling of 9867904 in words is "nine million, eight hundred sixty-seven thousand, nine hundred four".