9904775 has 12 divisors (see below), whose sum is σ = 12369000. Its totient is φ = 7867680.

The previous prime is 9904751. The next prime is 9904777. The reversal of 9904775 is 5774099.

It is a happy number.

It is not a de Polignac number, because 9904775 - 2⁸ = 9904519 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9904777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2396 + ... + 5054.

It is an arithmetic number, because the mean of its divisors is an integer number (1030750).

Almost surely, 2^9904775 is an apocalyptic number.

9904775 is a deficient number, since it is larger than the sum of its proper divisors (2464225).

9904775 is a wasteful number, since it uses less digits than its factorization.

9904775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818 (or 2813 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 9904775 is about 3147.1852503467. The cubic root of 9904775 is about 214.7574333036.

The spelling of 9904775 in words is "nine million, nine hundred four thousand, seven hundred seventy-five".