1346663 has 4 divisors (see below), whose sum is σ = 1417560. Its totient is φ = 1275768.

The previous prime is 1346647. The next prime is 1346669. The reversal of 1346663 is 3666431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3666431 = 151 ⋅24281.

It is a cyclic number.

It is not a de Polignac number, because 1346663 - 2⁴ = 1346647 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346669) 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, 35420 + ... + 35457.

It is an arithmetic number, because the mean of its divisors is an integer number (354390).

2^1346663 is an apocalyptic number.

1346663 is a deficient number, since it is larger than the sum of its proper divisors (70897).

1346663 is an equidigital number, since it uses as much as digits as its factorization.

1346663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70896.

The product of its digits is 7776, while the sum is 29.

The square root of 1346663 is about 1160.4580992005. The cubic root of 1346663 is about 110.4298060231.

The spelling of 1346663 in words is "one million, three hundred forty-six thousand, six hundred sixty-three".