9904731 has 8 divisors (see below), whose sum is σ = 13233744. Its totient is φ = 6589440.

The previous prime is 9904729. The next prime is 9904751. The reversal of 9904731 is 1374099.

9904731 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 9904731 - 2¹ = 9904729 is a prime.

It is a super-2 number, since 2×9904731² = 196207392364722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9904692 and 9904701.

It is not an unprimeable number, because it can be changed into a prime (9904751) 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, 1606 + ... + 4731.

It is an arithmetic number, because the mean of its divisors is an integer number (1654218).

Almost surely, 2^9904731 is an apocalyptic number.

9904731 is a deficient number, since it is larger than the sum of its proper divisors (3329013).

9904731 is a wasteful number, since it uses less digits than its factorization.

9904731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6861.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 9904731 is about 3147.1782599656. The cubic root of 9904731 is about 214.7571152973.

The spelling of 9904731 in words is "nine million, nine hundred four thousand, seven hundred thirty-one".