9903725 has 24 divisors (see below), whose sum is σ = 13665792. Its totient is φ = 7070400.

The previous prime is 9903721. The next prime is 9903749. The reversal of 9903725 is 5273099.

9903725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9903725 - 2² = 9903721 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9903721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9584 + ... + 10566.

It is an arithmetic number, because the mean of its divisors is an integer number (569408).

Almost surely, 2^9903725 is an apocalyptic number.

It is an amenable number.

9903725 is a deficient number, since it is larger than the sum of its proper divisors (3762067).

9903725 is a wasteful number, since it uses less digits than its factorization.

9903725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 9903725 is about 3147.0184301971. The cubic root of 9903725 is about 214.7498442611.

The spelling of 9903725 in words is "nine million, nine hundred three thousand, seven hundred twenty-five".