1649363 has 2 divisors, whose sum is σ = 1649364. Its totient is φ = 1649362.

The previous prime is 1649359. The next prime is 1649369. The reversal of 1649363 is 3639461.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1649363 - 2² = 1649359 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1649369) 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, 824681 + 824682.

It is an arithmetic number, because the mean of its divisors is an integer number (824682).

2^1649363 is an apocalyptic number.

1649363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1649363 is an equidigital number, since it uses as much as digits as its factorization.

1649363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 1649363 is about 1284.2752820171. The cubic root of 1649363 is about 118.1513666029.

The spelling of 1649363 in words is "one million, six hundred forty-nine thousand, three hundred sixty-three".