1098688 has 14 divisors (see below), whose sum is σ = 2180336. Its totient is φ = 549312.

The previous prime is 1098673. The next prime is 1098689. The reversal of 1098688 is 8868901.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098689) by changing a digit.

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 as a sum of consecutive naturals, namely, 8520 + ... + 8647.

2^1098688 is an apocalyptic number.

It is an amenable number.

1098688 is a deficient number, since it is larger than the sum of its proper divisors (1081648).

1098688 is an equidigital number, since it uses as much as digits as its factorization.

1098688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17179 (or 17169 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 1098688 is about 1048.1831900961. The cubic root of 1098688 is about 103.1869542630.

The spelling of 1098688 in words is "one million, ninety-eight thousand, six hundred eighty-eight".