1320463 has 4 divisors (see below), whose sum is σ = 1328728. Its totient is φ = 1312200.

The previous prime is 1320437. The next prime is 1320533. The reversal of 1320463 is 3640231.

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 1320463 - 2⁹ = 1319951 is a prime.

It is a Duffinian number.

1320463 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1320463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320413) 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, 3888 + ... + 4213.

It is an arithmetic number, because the mean of its divisors is an integer number (332182).

2^1320463 is an apocalyptic number.

1320463 is a deficient number, since it is larger than the sum of its proper divisors (8265).

1320463 is an equidigital number, since it uses as much as digits as its factorization.

1320463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8264.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1320463 is about 1149.1140065285. The cubic root of 1320463 is about 109.7089551324.

Adding to 1320463 its reverse (3640231), we get a palindrome (4960694).

The spelling of 1320463 in words is "one million, three hundred twenty thousand, four hundred sixty-three".