9888725 has 36 divisors (see below), whose sum is σ = 15436512. Its totient is φ = 6151200.

The previous prime is 9888719. The next prime is 9888727. The reversal of 9888725 is 5278889.

It is not a de Polignac number, because 9888725 - 2⁶ = 9888661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9888725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9888727) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20942 + ... + 21408.

It is an arithmetic number, because the mean of its divisors is an integer number (428792).

Almost surely, 2^9888725 is an apocalyptic number.

It is an amenable number.

9888725 is a deficient number, since it is larger than the sum of its proper divisors (5547787).

9888725 is a wasteful number, since it uses less digits than its factorization.

9888725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 490 counting only the distinct ones).

The product of its digits is 322560, while the sum is 47.

The square root of 9888725 is about 3144.6343189630. The cubic root of 9888725 is about 214.6413707553.

The spelling of 9888725 in words is "nine million, eight hundred eighty-eight thousand, seven hundred twenty-five".