1648441 has 2 divisors, whose sum is σ = 1648442. Its totient is φ = 1648440.

The previous prime is 1648429. The next prime is 1648453. The reversal of 1648441 is 1448461.

It is a balanced prime because it is at equal distance from previous prime (1648429) and next prime (1648453).

It can be written as a sum of positive squares in only one way, i.e., 942841 + 705600 = 971^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1648441 - 2¹⁵ = 1615673 is a prime.

It is a Chen prime.

1648441 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1648481) 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, 824220 + 824221.

It is an arithmetic number, because the mean of its divisors is an integer number (824221).

2^1648441 is an apocalyptic number.

It is an amenable number.

1648441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1648441 is an equidigital number, since it uses as much as digits as its factorization.

1648441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 28.

The square root of 1648441 is about 1283.9162745288. The cubic root of 1648441 is about 118.1293468161.

The spelling of 1648441 in words is "one million, six hundred forty-eight thousand, four hundred forty-one".