36623231 has 2 divisors, whose sum is σ = 36623232. Its totient is φ = 36623230.

The previous prime is 36623227. The next prime is 36623239. The reversal of 36623231 is 13232663.

It is a weak prime.

It is an emirp because it is prime and its reverse (13232663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36623231 - 2² = 36623227 is a prime.

It is a super-3 number, since 3×36623231³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 36623231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36623239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18311615 + 18311616.

It is an arithmetic number, because the mean of its divisors is an integer number (18311616).

Almost surely, 2^36623231 is an apocalyptic number.

36623231 is a deficient number, since it is larger than the sum of its proper divisors (1).

36623231 is an equidigital number, since it uses as much as digits as its factorization.

36623231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 26.

The square root of 36623231 is about 6051.7130632574. The cubic root of 36623231 is about 332.0872629523.

Adding to 36623231 its reverse (13232663), we get a palindrome (49855894).

The spelling of 36623231 in words is "thirty-six million, six hundred twenty-three thousand, two hundred thirty-one".