9728258 has 8 divisors (see below), whose sum is σ = 14651280. Its totient is φ = 4844500.

The previous prime is 9728249. The next prime is 9728261. The reversal of 9728258 is 8528279.

It is a happy number.

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

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, 9188 + ... + 10191.

It is an arithmetic number, because the mean of its divisors is an integer number (1831410).

Almost surely, 2^9728258 is an apocalyptic number.

9728258 is a deficient number, since it is larger than the sum of its proper divisors (4923022).

9728258 is a wasteful number, since it uses less digits than its factorization.

9728258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19632.

The product of its digits is 80640, while the sum is 41.

The square root of 9728258 is about 3119.0155498170. The cubic root of 9728258 is about 213.4740190730.

The spelling of 9728258 in words is "nine million, seven hundred twenty-eight thousand, two hundred fifty-eight".