9904497 has 4 divisors (see below), whose sum is σ = 13206000. Its totient is φ = 6602996.

The previous prime is 9904487. The next prime is 9904519. The reversal of 9904497 is 7944099.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7944099 = 3 ⋅2648033.

It is a cyclic number.

It is not a de Polignac number, because 9904497 - 2¹⁰ = 9903473 is a prime.

It is an Ulam number.

9904497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9904487) 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, 1650747 + ... + 1650752.

It is an arithmetic number, because the mean of its divisors is an integer number (3301500).

Almost surely, 2^9904497 is an apocalyptic number.

It is an amenable number.

9904497 is a deficient number, since it is larger than the sum of its proper divisors (3301503).

9904497 is a wasteful number, since it uses less digits than its factorization.

9904497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3301502.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 9904497 is about 3147.1410835868. The cubic root of 9904497 is about 214.7554240665.

It can be divided in two parts, 9904 and 497, that added together give a palindrome (10401).

The spelling of 9904497 in words is "nine million, nine hundred four thousand, four hundred ninety-seven".