1323813 has 8 divisors (see below), whose sum is σ = 1773376. Its totient is φ = 878400.

The previous prime is 1323799. The next prime is 1323851. The reversal of 1323813 is 3183231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1323813 - 2⁴ = 1323797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1323813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193 + ... + 1638.

It is an arithmetic number, because the mean of its divisors is an integer number (221672).

2^1323813 is an apocalyptic number.

It is an amenable number.

1323813 is a deficient number, since it is larger than the sum of its proper divisors (449563).

1323813 is a wasteful number, since it uses less digits than its factorization.

1323813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075.

The product of its digits is 432, while the sum is 21.

The square root of 1323813 is about 1150.5707279433. The cubic root of 1323813 is about 109.8016535861.

The spelling of 1323813 in words is "one million, three hundred twenty-three thousand, eight hundred thirteen".