1098850 has 12 divisors (see below), whose sum is σ = 2043954. Its totient is φ = 439520.

The previous prime is 1098847. The next prime is 1098953. The reversal of 1098850 is 588901.

It can be written as a sum of positive squares in 3 ways, for example, as 797449 + 301401 = 893^2 + 549^2 .

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 5 ways as a sum of consecutive naturals, for example, 10939 + ... + 11038.

2^1098850 is an apocalyptic number.

1098850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1098850 is a deficient number, since it is larger than the sum of its proper divisors (945104).

1098850 is a wasteful number, since it uses less digits than its factorization.

1098850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21989 (or 21984 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 1098850 is about 1048.2604638161. The cubic root of 1098850 is about 103.1920256042.

The spelling of 1098850 in words is "one million, ninety-eight thousand, eight hundred fifty".