9728983 has 4 divisors (see below), whose sum is σ = 10613448. Its totient is φ = 8844520.

The previous prime is 9728941. The next prime is 9729017. The reversal of 9728983 is 3898279.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9728983 - 2¹³ = 9720791 is a prime.

It is a super-2 number, since 2×9728983² = 189306220428578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9728903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442216 + ... + 442237.

It is an arithmetic number, because the mean of its divisors is an integer number (2653362).

Almost surely, 2^9728983 is an apocalyptic number.

9728983 is a deficient number, since it is larger than the sum of its proper divisors (884465).

9728983 is a wasteful number, since it uses less digits than its factorization.

9728983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884464.

The product of its digits is 217728, while the sum is 46.

The square root of 9728983 is about 3119.1317702207. The cubic root of 9728983 is about 213.4793220032.

The spelling of 9728983 in words is "nine million, seven hundred twenty-eight thousand, nine hundred eighty-three".