72069167 has 2 divisors, whose sum is σ = 72069168. Its totient is φ = 72069166.

The previous prime is 72069163. The next prime is 72069169. The reversal of 72069167 is 76196027.

It is a strong prime.

It is an emirp because it is prime and its reverse (76196027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72069167 - 2² = 72069163 is a prime.

Together with 72069169, it forms a pair of twin primes.

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 72069167.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72069163) 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, 36034583 + 36034584.

It is an arithmetic number, because the mean of its divisors is an integer number (36034584).

Almost surely, 2^72069167 is an apocalyptic number.

72069167 is a deficient number, since it is larger than the sum of its proper divisors (1).

72069167 is an equidigital number, since it uses as much as digits as its factorization.

72069167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 72069167 is about 8489.3561004354. The cubic root of 72069167 is about 416.1499378619.

The spelling of 72069167 in words is "seventy-two million, sixty-nine thousand, one hundred sixty-seven".