1198498 has 8 divisors (see below), whose sum is σ = 2054592. Its totient is φ = 513636.

The previous prime is 1198481. The next prime is 1198511. The reversal of 1198498 is 8948911.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1198498.

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, 42790 + ... + 42817.

It is an arithmetic number, because the mean of its divisors is an integer number (256824).

2^1198498 is an apocalyptic number.

1198498 is a deficient number, since it is larger than the sum of its proper divisors (856094).

1198498 is an equidigital number, since it uses as much as digits as its factorization.

1198498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85616.

The product of its digits is 20736, while the sum is 40.

The square root of 1198498 is about 1094.7593342831. The cubic root of 1198498 is about 106.2215019303.

The spelling of 1198498 in words is "one million, one hundred ninety-eight thousand, four hundred ninety-eight".