1028898 has 24 divisors (see below), whose sum is σ = 2401308. Its totient is φ = 316512.

The previous prime is 1028893. The next prime is 1028903. The reversal of 1028898 is 8988201.

It is an interprime number because it is at equal distance from previous prime (1028893) and next prime (1028903).

It can be written as a sum of positive squares in 2 ways, for example, as 986049 + 42849 = 993^2 + 207^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1028893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1965 + ... + 2432.

2^1028898 is an apocalyptic number.

1028898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1028898 is an abundant number, since it is smaller than the sum of its proper divisors (1372410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1028898 is a wasteful number, since it uses less digits than its factorization.

1028898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418 (or 4415 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1028898 is about 1014.3460947822. The cubic root of 1028898 is about 100.9541339960.

The spelling of 1028898 in words is "one million, twenty-eight thousand, eight hundred ninety-eight".