1098886 has 4 divisors (see below), whose sum is σ = 1648332. Its totient is φ = 549442.

The previous prime is 1098847. The next prime is 1098953. The reversal of 1098886 is 6888901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6888901 = 43 ⋅160207.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 274720 + ... + 274723.

It is an arithmetic number, because the mean of its divisors is an integer number (412083).

2^1098886 is an apocalyptic number.

1098886 is a deficient number, since it is larger than the sum of its proper divisors (549446).

1098886 is an equidigital number, since it uses as much as digits as its factorization.

1098886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549445.

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

The square root of 1098886 is about 1048.2776349804. The cubic root of 1098886 is about 103.1931525012.

The spelling of 1098886 in words is "one million, ninety-eight thousand, eight hundred eighty-six".