9428993 has 4 divisors (see below), whose sum is σ = 10776000. Its totient is φ = 8081988.

The previous prime is 9428989. The next prime is 9429001. The reversal of 9428993 is 3998249.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9428993 - 2² = 9428989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9428963) 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, 673493 + ... + 673506.

It is an arithmetic number, because the mean of its divisors is an integer number (2694000).

It is a Proth number, since it is equal to 1151 ⋅ 2¹³ + 1 and 1151 < 2¹³.

Almost surely, 2^9428993 is an apocalyptic number.

It is an amenable number.

9428993 is a deficient number, since it is larger than the sum of its proper divisors (1347007).

9428993 is a wasteful number, since it uses less digits than its factorization.

9428993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347006.

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

The square root of 9428993 is about 3070.6665400203. Note that the first 3 decimals coincide. The cubic root of 9428993 is about 211.2621868954.

The spelling of 9428993 in words is "nine million, four hundred twenty-eight thousand, nine hundred ninety-three".