1098818 has 8 divisors (see below), whose sum is σ = 1883712. Its totient is φ = 470916.

The previous prime is 1098803. The next prime is 1098821. The reversal of 1098818 is 8188901.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 39230 + ... + 39257.

It is an arithmetic number, because the mean of its divisors is an integer number (235464).

2^1098818 is an apocalyptic number.

1098818 is a deficient number, since it is larger than the sum of its proper divisors (784894).

1098818 is an equidigital number, since it uses as much as digits as its factorization.

1098818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78496.

The product of its (nonzero) digits is 4608, while the sum is 35.

The square root of 1098818 is about 1048.2452003229. The cubic root of 1098818 is about 103.1910238973.

The spelling of 1098818 in words is "one million, ninety-eight thousand, eight hundred eighteen".