9904013 has 8 divisors (see below), whose sum is σ = 11984832. Its totient is φ = 7989696.

The previous prime is 9903989. The next prime is 9904019. The reversal of 9904013 is 3104099.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9904013 - 2¹⁰ = 9902989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9904019) 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, 41495 + ... + 41732.

It is an arithmetic number, because the mean of its divisors is an integer number (1498104).

Almost surely, 2^9904013 is an apocalyptic number.

It is an amenable number.

9904013 is a deficient number, since it is larger than the sum of its proper divisors (2080819).

9904013 is a wasteful number, since it uses less digits than its factorization.

9904013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83251.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 9904013 is about 3147.0641874611. The cubic root of 9904013 is about 214.7519258804.

The spelling of 9904013 in words is "nine million, nine hundred four thousand, thirteen".