9725558 has 8 divisors (see below), whose sum is σ = 14678328. Its totient is φ = 4832784.

The previous prime is 9725539. The next prime is 9725563. The reversal of 9725558 is 8555279.

9725558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×9725558³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14591 + ... + 15242.

It is an arithmetic number, because the mean of its divisors is an integer number (1834791).

Almost surely, 2^9725558 is an apocalyptic number.

9725558 is a deficient number, since it is larger than the sum of its proper divisors (4952770).

9725558 is a wasteful number, since it uses less digits than its factorization.

9725558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29998.

The product of its digits is 126000, while the sum is 41.

The square root of 9725558 is about 3118.5826909030. The cubic root of 9725558 is about 213.4542679116.

The spelling of 9725558 in words is "nine million, seven hundred twenty-five thousand, five hundred fifty-eight".