9725830 has 16 divisors (see below), whose sum is σ = 17634960. Its totient is φ = 3861792.

The previous prime is 9725827. The next prime is 9725839. The reversal of 9725830 is 385279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2109 + ... + 4888.

It is an arithmetic number, because the mean of its divisors is an integer number (1102185).

Almost surely, 2^9725830 is an apocalyptic number.

9725830 is a deficient number, since it is larger than the sum of its proper divisors (7909130).

9725830 is a wasteful number, since it uses less digits than its factorization.

9725830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7143.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 9725830 is about 3118.6263001520. The cubic root of 9725830 is about 213.4562578238.

The spelling of 9725830 in words is "nine million, seven hundred twenty-five thousand, eight hundred thirty".