9428791 has 2 divisors, whose sum is σ = 9428792. Its totient is φ = 9428790.

The previous prime is 9428779. The next prime is 9428851. The reversal of 9428791 is 1978249.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9428791 - 2⁵ = 9428759 is a prime.

9428791 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9428491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4714395 + 4714396.

It is an arithmetic number, because the mean of its divisors is an integer number (4714396).

Almost surely, 2^9428791 is an apocalyptic number.

9428791 is a deficient number, since it is larger than the sum of its proper divisors (1).

9428791 is an equidigital number, since it uses as much as digits as its factorization.

9428791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 9428791 is about 3070.6336479626. The cubic root of 9428791 is about 211.2606782413.

The spelling of 9428791 in words is "nine million, four hundred twenty-eight thousand, seven hundred ninety-one".