9725646 has 16 divisors (see below), whose sum is σ = 22230144. Its totient is φ = 2778744.

The previous prime is 9725641. The next prime is 9725647. The reversal of 9725646 is 6465279.

9725646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725641) 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, 115740 + ... + 115823.

It is an arithmetic number, because the mean of its divisors is an integer number (1389384).

Almost surely, 2^9725646 is an apocalyptic number.

9725646 is an abundant number, since it is smaller than the sum of its proper divisors (12504498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9725646 is a wasteful number, since it uses less digits than its factorization.

9725646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231575.

The product of its digits is 90720, while the sum is 39.

The square root of 9725646 is about 3118.5967998444. The cubic root of 9725646 is about 213.4549117108.

The spelling of 9725646 in words is "nine million, seven hundred twenty-five thousand, six hundred forty-six".