1648039 has 2 divisors, whose sum is σ = 1648040. Its totient is φ = 1648038.

The previous prime is 1648021. The next prime is 1648057. The reversal of 1648039 is 9308461.

It is a balanced prime because it is at equal distance from previous prime (1648021) and next prime (1648057).

It is a cyclic number.

It is not a de Polignac number, because 1648039 - 2⁷ = 1647911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1648039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1648069) 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, 824019 + 824020.

It is an arithmetic number, because the mean of its divisors is an integer number (824020).

2^1648039 is an apocalyptic number.

1648039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1648039 is an equidigital number, since it uses as much as digits as its factorization.

1648039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1648039 is about 1283.7597127189. The cubic root of 1648039 is about 118.1197434276.

The spelling of 1648039 in words is "one million, six hundred forty-eight thousand, thirty-nine".