1663496 has 16 divisors (see below), whose sum is σ = 3134700. Its totient is φ = 827584.

The previous prime is 1663481. The next prime is 1663513. The reversal of 1663496 is 6943661.

It can be written as a sum of positive squares in 2 ways, for example, as 1240996 + 422500 = 1114^2 + 650^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1766 + ... + 2538.

2^1663496 is an apocalyptic number.

It is an amenable number.

1663496 is a deficient number, since it is larger than the sum of its proper divisors (1471204).

1663496 is a wasteful number, since it uses less digits than its factorization.

1663496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 1044 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 1663496 is about 1289.7658702261. The cubic root of 1663496 is about 118.4878776018.

The spelling of 1663496 in words is "one million, six hundred sixty-three thousand, four hundred ninety-six".