9928493 has 8 divisors (see below), whose sum is σ = 10579968. Its totient is φ = 9284544.

The previous prime is 9928487. The next prime is 9928537. The reversal of 9928493 is 3948299.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9928493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9928403) 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, 980 + ... + 4562.

It is an arithmetic number, because the mean of its divisors is an integer number (1322496).

Almost surely, 2^9928493 is an apocalyptic number.

It is an amenable number.

9928493 is a deficient number, since it is larger than the sum of its proper divisors (651475).

9928493 is a wasteful number, since it uses less digits than its factorization.

9928493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763.

The product of its digits is 139968, while the sum is 44.

The square root of 9928493 is about 3150.9511262474. The cubic root of 9928493 is about 214.9287162277.

The spelling of 9928493 in words is "nine million, nine hundred twenty-eight thousand, four hundred ninety-three".