1984898 has 4 divisors (see below), whose sum is σ = 2977350. Its totient is φ = 992448.

The previous prime is 1984897. The next prime is 1984901. The reversal of 1984898 is 8984891.

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

It can be written as a sum of positive squares in only one way, i.e., 1151329 + 833569 = 1073^2 + 913^2 .

It is not an unprimeable number, because it can be changed into a prime (1984891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496223 + ... + 496226.

2^1984898 is an apocalyptic number.

1984898 is a deficient number, since it is larger than the sum of its proper divisors (992452).

1984898 is an equidigital number, since it uses as much as digits as its factorization.

1984898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992451.

The product of its digits is 165888, while the sum is 47.

The square root of 1984898 is about 1408.8640814500. The cubic root of 1984898 is about 125.6741812994.

It can be divided in two parts, 1984 and 898, that added together give a palindrome (2882).

The spelling of 1984898 in words is "one million, nine hundred eighty-four thousand, eight hundred ninety-eight".