1982087 has 2 divisors, whose sum is σ = 1982088. Its totient is φ = 1982086.

The previous prime is 1982083. The next prime is 1982093. The reversal of 1982087 is 7802891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1982087 - 2² = 1982083 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1982083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991043 + 991044.

It is an arithmetic number, because the mean of its divisors is an integer number (991044).

2^1982087 is an apocalyptic number.

1982087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982087 is an equidigital number, since it uses as much as digits as its factorization.

1982087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1982087 is about 1407.8661157937. The cubic root of 1982087 is about 125.6148269445.

The spelling of 1982087 in words is "one million, nine hundred eighty-two thousand, eighty-seven".