1648966 has 16 divisors (see below), whose sum is σ = 2857680. Its totient is φ = 705280.

The previous prime is 1648963. The next prime is 1648987. The reversal of 1648966 is 6698461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1831 + ... + 2578.

It is an arithmetic number, because the mean of its divisors is an integer number (178605).

2^1648966 is an apocalyptic number.

1648966 is a deficient number, since it is larger than the sum of its proper divisors (1208714).

1648966 is a wasteful number, since it uses less digits than its factorization.

1648966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439.

The product of its digits is 62208, while the sum is 40.

The square root of 1648966 is about 1284.1207108368. The cubic root of 1648966 is about 118.1418862042.

The spelling of 1648966 in words is "one million, six hundred forty-eight thousand, nine hundred sixty-six".