9904249 has 4 divisors (see below), whose sum is σ = 9959760. Its totient is φ = 9848740.

The previous prime is 9904231. The next prime is 9904253. The reversal of 9904249 is 9424099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9904249 - 2¹⁵ = 9871481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9904289) 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 3 ways as a sum of consecutive naturals, for example, 27487 + ... + 27844.

It is an arithmetic number, because the mean of its divisors is an integer number (2489940).

Almost surely, 2^9904249 is an apocalyptic number.

It is an amenable number.

9904249 is a deficient number, since it is larger than the sum of its proper divisors (55511).

9904249 is a wasteful number, since it uses less digits than its factorization.

9904249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55510.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 9904249 is about 3147.1016825009. The cubic root of 9904249 is about 214.7536316217.

It can be divided in two parts, 9904 and 249, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 9904249 in words is "nine million, nine hundred four thousand, two hundred forty-nine".