1098992 has 10 divisors (see below), whose sum is σ = 2129328. Its totient is φ = 549488.

The previous prime is 1098989. The next prime is 1099031. The reversal of 1098992 is 2998901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34328 + ... + 34359.

2^1098992 is an apocalyptic number.

It is an amenable number.

1098992 is a deficient number, since it is larger than the sum of its proper divisors (1030336).

1098992 is an equidigital number, since it uses as much as digits as its factorization.

1098992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68695 (or 68689 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 1098992 is about 1048.3281928862. The cubic root of 1098992 is about 103.1964704440.

It can be divided in two parts, 109899 and 2, that added together give a palindrome (109901).

The spelling of 1098992 in words is "one million, ninety-eight thousand, nine hundred ninety-two".