1982998 has 4 divisors (see below), whose sum is σ = 2974500. Its totient is φ = 991498.

The previous prime is 1982993. The next prime is 1983001. The reversal of 1982998 is 8992891.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495748 + ... + 495751.

It is an arithmetic number, because the mean of its divisors is an integer number (743625).

2^1982998 is an apocalyptic number.

1982998 is a deficient number, since it is larger than the sum of its proper divisors (991502).

1982998 is an equidigital number, since it uses as much as digits as its factorization.

1982998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991501.

The product of its digits is 93312, while the sum is 46.

The square root of 1982998 is about 1408.1896179137. The cubic root of 1982998 is about 125.6340688815.

The spelling of 1982998 in words is "one million, nine hundred eighty-two thousand, nine hundred ninety-eight".