72636211 has 2 divisors, whose sum is σ = 72636212. Its totient is φ = 72636210.

The previous prime is 72636203. The next prime is 72636247. The reversal of 72636211 is 11263627.

It is a weak prime.

It is an emirp because it is prime and its reverse (11263627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72636211 - 2³ = 72636203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72636211.

It is not a weakly prime, because it can be changed into another prime (72637211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36318105 + 36318106.

It is an arithmetic number, because the mean of its divisors is an integer number (36318106).

Almost surely, 2^72636211 is an apocalyptic number.

72636211 is a deficient number, since it is larger than the sum of its proper divisors (1).

72636211 is an equidigital number, since it uses as much as digits as its factorization.

72636211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 72636211 is about 8522.6880149399. The cubic root of 72636211 is about 417.2385177061.

Adding to 72636211 its reverse (11263627), we get a palindrome (83899838).

The spelling of 72636211 in words is "seventy-two million, six hundred thirty-six thousand, two hundred eleven".