324536813 has 2 divisors, whose sum is σ = 324536814. Its totient is φ = 324536812.

The previous prime is 324536803. The next prime is 324536827. The reversal of 324536813 is 318635423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324468169 + 68644 = 18013^2 + 262^2 .

It is a cyclic number.

It is not a de Polignac number, because 324536813 - 2¹² = 324532717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_17506646 and since 324536813 and 17506646 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (324536803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162268406 + 162268407.

It is an arithmetic number, because the mean of its divisors is an integer number (162268407).

Almost surely, 2^324536813 is an apocalyptic number.

It is an amenable number.

324536813 is a deficient number, since it is larger than the sum of its proper divisors (1).

324536813 is an equidigital number, since it uses as much as digits as its factorization.

324536813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 324536813 is about 18014.9053008890. The cubic root of 324536813 is about 687.2076556715.

The spelling of 324536813 in words is "three hundred twenty-four million, five hundred thirty-six thousand, eight hundred thirteen".