36218393 has 2 divisors, whose sum is σ = 36218394. Its totient is φ = 36218392.

The previous prime is 36218387. The next prime is 36218443. The reversal of 36218393 is 39381263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19465744 + 16752649 = 4412^2 + 4093^2 .

It is a cyclic number.

It is not a de Polignac number, because 36218393 - 2¹⁴ = 36202009 is a prime.

It is a super-3 number, since 3×36218393³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (36218333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18109196 + 18109197.

It is an arithmetic number, because the mean of its divisors is an integer number (18109197).

Almost surely, 2^36218393 is an apocalyptic number.

It is an amenable number.

36218393 is a deficient number, since it is larger than the sum of its proper divisors (1).

36218393 is an equidigital number, since it uses as much as digits as its factorization.

36218393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The square root of 36218393 is about 6018.1718985087. The cubic root of 36218393 is about 330.8590808883.

The spelling of 36218393 in words is "thirty-six million, two hundred eighteen thousand, three hundred ninety-three".