1982499 has 4 divisors (see below), whose sum is σ = 2643336. Its totient is φ = 1321664.

The previous prime is 1982471. The next prime is 1982501. The reversal of 1982499 is 9942891.

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

It is a cyclic number.

It is not a de Polignac number, because 1982499 - 2⁵ = 1982467 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1982499.

It is not an unprimeable number, because it can be changed into a prime (1982599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330414 + ... + 330419.

It is an arithmetic number, because the mean of its divisors is an integer number (660834).

2^1982499 is an apocalyptic number.

1982499 is a deficient number, since it is larger than the sum of its proper divisors (660837).

1982499 is an equidigital number, since it uses as much as digits as its factorization.

1982499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660836.

The product of its digits is 46656, while the sum is 42.

The square root of 1982499 is about 1408.0124289224. The cubic root of 1982499 is about 125.6235298459.

The spelling of 1982499 in words is "one million, nine hundred eighty-two thousand, four hundred ninety-nine".