9904749 has 8 divisors (see below), whose sum is σ = 13513632. Its totient is φ = 6449520.

The previous prime is 9904729. The next prime is 9904751. The reversal of 9904749 is 9474099.

9904749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9904749 - 2⁷ = 9904621 is a prime.

9904749 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9904749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9904709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38262 + ... + 38519.

It is an arithmetic number, because the mean of its divisors is an integer number (1689204).

Almost surely, 2^9904749 is an apocalyptic number.

It is an amenable number.

9904749 is a deficient number, since it is larger than the sum of its proper divisors (3608883).

9904749 is a wasteful number, since it uses less digits than its factorization.

9904749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76827.

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

The square root of 9904749 is about 3147.1811196688. The cubic root of 9904749 is about 214.7572453909.

The spelling of 9904749 in words is "nine million, nine hundred four thousand, seven hundred forty-nine".