791428 has 12 divisors (see below), whose sum is σ = 1510992. Its totient is φ = 359720.

The previous prime is 791419. The next prime is 791431. The reversal of 791428 is 824197.

It is a self number, because there is not a number n which added to its sum of digits gives 791428.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8950 + ... + 9037.

It is an arithmetic number, because the mean of its divisors is an integer number (125916).

2⁷⁹¹⁴²⁸ is an apocalyptic number.

It is an amenable number.

791428 is a deficient number, since it is larger than the sum of its proper divisors (719564).

791428 is a wasteful number, since it uses less digits than its factorization.

791428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18002 (or 18000 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 791428 is about 889.6223918045. The cubic root of 791428 is about 92.4990211730.

The spelling of 791428 in words is "seven hundred ninety-one thousand, four hundred twenty-eight".