72069211 has 2 divisors, whose sum is σ = 72069212. Its totient is φ = 72069210.

The previous prime is 72069209. The next prime is 72069233. The reversal of 72069211 is 11296027.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72069211 - 2¹ = 72069209 is a prime.

Together with 72069209, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72069211.

It is not a weakly prime, because it can be changed into another prime (72069271) 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, 36034605 + 36034606.

It is an arithmetic number, because the mean of its divisors is an integer number (36034606).

Almost surely, 2^72069211 is an apocalyptic number.

72069211 is a deficient number, since it is larger than the sum of its proper divisors (1).

72069211 is an equidigital number, since it uses as much as digits as its factorization.

72069211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 72069211 is about 8489.3586919154. The cubic root of 72069211 is about 416.1500225518.

The spelling of 72069211 in words is "seventy-two million, sixty-nine thousand, two hundred eleven".