1246643 has 4 divisors (see below), whose sum is σ = 1259088. Its totient is φ = 1234200.

The previous prime is 1246639. The next prime is 1246667. The reversal of 1246643 is 3466421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1246643 - 2² = 1246639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1246673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6071 + ... + 6272.

It is an arithmetic number, because the mean of its divisors is an integer number (314772).

2^1246643 is an apocalyptic number.

1246643 is a deficient number, since it is larger than the sum of its proper divisors (12445).

1246643 is a wasteful number, since it uses less digits than its factorization.

1246643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12444.

The product of its digits is 3456, while the sum is 26.

The square root of 1246643 is about 1116.5316833839. The cubic root of 1246643 is about 107.6252155495.

The spelling of 1246643 in words is "one million, two hundred forty-six thousand, six hundred forty-three".