368813 has 4 divisors (see below), whose sum is σ = 370140. Its totient is φ = 367488.

The previous prime is 368803. The next prime is 368833. The reversal of 368813 is 318863.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 100489 + 268324 = 317^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 368813 - 2¹⁰ = 367789 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368803) 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, 68 + ... + 861.

It is an arithmetic number, because the mean of its divisors is an integer number (92535).

2³⁶⁸⁸¹³ is an apocalyptic number.

It is an amenable number.

368813 is a deficient number, since it is larger than the sum of its proper divisors (1327).

368813 is an equidigital number, since it uses as much as digits as its factorization.

368813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326.

The product of its digits is 3456, while the sum is 29.

The square root of 368813 is about 607.2997612382. The cubic root of 368813 is about 71.7136906697.

The spelling of 368813 in words is "three hundred sixty-eight thousand, eight hundred thirteen".