1347663 has 16 divisors (see below), whose sum is σ = 1903616. Its totient is φ = 846720.

The previous prime is 1347637. The next prime is 1347667. The reversal of 1347663 is 3667431.

1347663 is nontrivially palindromic in base 5.

It is not a de Polignac number, because 1347663 - 2¹² = 1343567 is a prime.

It is an Ulam number.

It is a Duffinian number.

1347663 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1347663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3831 + ... + 4167.

It is an arithmetic number, because the mean of its divisors is an integer number (118976).

2^1347663 is an apocalyptic number.

1347663 is a deficient number, since it is larger than the sum of its proper divisors (555953).

1347663 is a wasteful number, since it uses less digits than its factorization.

1347663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414.

The product of its digits is 9072, while the sum is 30.

The square root of 1347663 is about 1160.8888835716. Note that the first 5 decimals coincide. The cubic root of 1347663 is about 110.4571334448.

The spelling of 1347663 in words is "one million, three hundred forty-seven thousand, six hundred sixty-three".