1028788 has 12 divisors (see below), whose sum is σ = 1808352. Its totient is φ = 512120.

The previous prime is 1028777. The next prime is 1028803. The reversal of 1028788 is 8878201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831 + ... + 1657.

It is an arithmetic number, because the mean of its divisors is an integer number (150696).

2^1028788 is an apocalyptic number.

It is an amenable number.

1028788 is a deficient number, since it is larger than the sum of its proper divisors (779564).

1028788 is a wasteful number, since it uses less digits than its factorization.

1028788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1140 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 1028788 is about 1014.2918712087. The cubic root of 1028788 is about 100.9505361821.

The spelling of 1028788 in words is "one million, twenty-eight thousand, seven hundred eighty-eight".