1028750 has 20 divisors (see below), whose sum is σ = 1930632. Its totient is φ = 411000.

The previous prime is 1028749. The next prime is 1028761. The reversal of 1028750 is 578201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 839 + ... + 1661.

2^1028750 is an apocalyptic number.

1028750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1028750 is a deficient number, since it is larger than the sum of its proper divisors (901882).

1028750 is an frugal number, since it uses more digits than its factorization.

1028750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1028750 is about 1014.2731387550. The cubic root of 1028750 is about 100.9492932413.

The spelling of 1028750 in words is "one million, twenty-eight thousand, seven hundred fifty".