1648564 has 12 divisors (see below), whose sum is σ = 2895424. Its totient is φ = 821304.

The previous prime is 1648553. The next prime is 1648567. The reversal of 1648564 is 4658461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648567) 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 in 3 ways as a sum of consecutive naturals, for example, 907 + ... + 2029.

2^1648564 is an apocalyptic number.

It is an amenable number.

1648564 is a deficient number, since it is larger than the sum of its proper divisors (1246860).

1648564 is a wasteful number, since it uses less digits than its factorization.

1648564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494 (or 1492 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 1648564 is about 1283.9641739550. The cubic root of 1648564 is about 118.1322848544.

The spelling of 1648564 in words is "one million, six hundred forty-eight thousand, five hundred sixty-four".