335636813 has 2 divisors, whose sum is σ = 335636814. Its totient is φ = 335636812.

The previous prime is 335636789. The next prime is 335636839. The reversal of 335636813 is 318636533.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332770564 + 2866249 = 18242^2 + 1693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-335636813 is a prime.

It is a super-2 number, since 2×335636813² = 225304140481593938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335636513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167818406 + 167818407.

It is an arithmetic number, because the mean of its divisors is an integer number (167818407).

Almost surely, 2^335636813 is an apocalyptic number.

It is an amenable number.

335636813 is a deficient number, since it is larger than the sum of its proper divisors (1).

335636813 is an equidigital number, since it uses as much as digits as its factorization.

335636813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 38.

The square root of 335636813 is about 18320.3933636808. The cubic root of 335636813 is about 694.9547530193.

The spelling of 335636813 in words is "three hundred thirty-five million, six hundred thirty-six thousand, eight hundred thirteen".