72267029 has 2 divisors, whose sum is σ = 72267030. Its totient is φ = 72267028.

The previous prime is 72267023. The next prime is 72267053. The reversal of 72267029 is 92076227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60808804 + 11458225 = 7798^2 + 3385^2 .

It is a cyclic number.

It is not a de Polignac number, because 72267029 - 2¹² = 72262933 is a prime.

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 72267029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72267023) 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, 36133514 + 36133515.

It is an arithmetic number, because the mean of its divisors is an integer number (36133515).

Almost surely, 2^72267029 is an apocalyptic number.

It is an amenable number.

72267029 is a deficient number, since it is larger than the sum of its proper divisors (1).

72267029 is an equidigital number, since it uses as much as digits as its factorization.

72267029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 72267029 is about 8501.0016468649. The cubic root of 72267029 is about 416.5304289169.

The spelling of 72267029 in words is "seventy-two million, two hundred sixty-seven thousand, twenty-nine".