1198798 has 4 divisors (see below), whose sum is σ = 1798200. Its totient is φ = 599398.

The previous prime is 1198793. The next prime is 1198811. The reversal of 1198798 is 8978911.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 299698 + ... + 299701.

It is an arithmetic number, because the mean of its divisors is an integer number (449550).

2^1198798 is an apocalyptic number.

1198798 is a deficient number, since it is larger than the sum of its proper divisors (599402).

1198798 is an equidigital number, since it uses as much as digits as its factorization.

1198798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599401.

The product of its digits is 36288, while the sum is 43.

The square root of 1198798 is about 1094.8963421256. The cubic root of 1198798 is about 106.2303640761.

The spelling of 1198798 in words is "one million, one hundred ninety-eight thousand, seven hundred ninety-eight".