1982837 has 2 divisors, whose sum is σ = 1982838. Its totient is φ = 1982836.

The previous prime is 1982833. The next prime is 1982839. The reversal of 1982837 is 7382891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1943236 + 39601 = 1394^2 + 199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1982837 - 2² = 1982833 is a prime.

Together with 1982839, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1982837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1982833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991418 + 991419.

It is an arithmetic number, because the mean of its divisors is an integer number (991419).

2^1982837 is an apocalyptic number.

It is an amenable number.

1982837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982837 is an equidigital number, since it uses as much as digits as its factorization.

1982837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 1982837 is about 1408.1324511565. The cubic root of 1982837 is about 125.6306687045.

The spelling of 1982837 in words is "one million, nine hundred eighty-two thousand, eight hundred thirty-seven".