36236813 has 2 divisors, whose sum is σ = 36236814. Its totient is φ = 36236812.

The previous prime is 36236807. The next prime is 36236839. The reversal of 36236813 is 31863263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35200489 + 1036324 = 5933^2 + 1018^2 .

It is a cyclic number.

It is not a de Polignac number, because 36236813 - 2¹² = 36232717 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36236813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36236803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18118406 + 18118407.

It is an arithmetic number, because the mean of its divisors is an integer number (18118407).

Almost surely, 2^36236813 is an apocalyptic number.

It is an amenable number.

36236813 is a deficient number, since it is larger than the sum of its proper divisors (1).

36236813 is an equidigital number, since it uses as much as digits as its factorization.

36236813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 32.

The square root of 36236813 is about 6019.7020690396. The cubic root of 36236813 is about 330.9151609707.

The spelling of 36236813 in words is "thirty-six million, two hundred thirty-six thousand, eight hundred thirteen".