1984198862 has 4 divisors (see below), whose sum is σ = 2976298296. Its totient is φ = 992099430.

The previous prime is 1984198849. The next prime is 1984198871. The reversal of 1984198862 is 2688914891.

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

It is a junction number, because it is equal to n+sod(n) for n = 1984198798 and 1984198807.

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, 496049714 + ... + 496049717.

It is an arithmetic number, because the mean of its divisors is an integer number (744074574).

Almost surely, 2^1984198862 is an apocalyptic number.

1984198862 is a deficient number, since it is larger than the sum of its proper divisors (992099434).

1984198862 is an equidigital number, since it uses as much as digits as its factorization.

1984198862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992099433.

The product of its digits is 1990656, while the sum is 56.

The square root of 1984198862 is about 44544.3471385540. The cubic root of 1984198862 is about 1256.5942421641.

The spelling of 1984198862 in words is "one billion, nine hundred eighty-four million, one hundred ninety-eight thousand, eight hundred sixty-two".