1246663 has 6 divisors (see below), whose sum is σ = 1370432. Its totient is φ = 1133220.

The previous prime is 1246639. The next prime is 1246667. The reversal of 1246663 is 3666421.

It is not a de Polignac number, because 1246663 - 2⁵ = 1246631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1246667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5031 + ... + 5272.

2^1246663 is an apocalyptic number.

1246663 is a deficient number, since it is larger than the sum of its proper divisors (123769).

1246663 is a wasteful number, since it uses less digits than its factorization.

1246663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10325 (or 10314 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 1246663 is about 1116.5406396545. The cubic root of 1246663 is about 107.6257910932.

The spelling of 1246663 in words is "one million, two hundred forty-six thousand, six hundred sixty-three".