323936813 has 4 divisors (see below), whose sum is σ = 332691900. Its totient is φ = 315181728.

The previous prime is 323936803. The next prime is 323936849. The reversal of 323936813 is 318639323.

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

It can be written as a sum of positive squares in 2 ways, for example, as 263672644 + 60264169 = 16238^2 + 7763^2 .

It is a cyclic number.

It is not a de Polignac number, because 323936813 - 2⁶ = 323936749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323936803) 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, 4377488 + ... + 4377561.

It is an arithmetic number, because the mean of its divisors is an integer number (83172975).

Almost surely, 2^323936813 is an apocalyptic number.

It is an amenable number.

323936813 is a deficient number, since it is larger than the sum of its proper divisors (8755087).

323936813 is an equidigital number, since it uses as much as digits as its factorization.

323936813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755086.

The product of its digits is 69984, while the sum is 38.

The square root of 323936813 is about 17998.2447199720. The cubic root of 323936813 is about 686.7838938274.

The spelling of 323936813 in words is "three hundred twenty-three million, nine hundred thirty-six thousand, eight hundred thirteen".