72327529 has 2 divisors, whose sum is σ = 72327530. Its totient is φ = 72327528.

The previous prime is 72327523. The next prime is 72327539. The reversal of 72327529 is 92572327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54051904 + 18275625 = 7352^2 + 4275^2 .

It is a cyclic number.

It is not a de Polignac number, because 72327529 - 2¹⁹ = 71803241 is a prime.

It is a Chen prime.

It is equal to p_4246939 and since 72327529 and 4246939 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (72327523) 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, 36163764 + 36163765.

It is an arithmetic number, because the mean of its divisors is an integer number (36163765).

Almost surely, 2^72327529 is an apocalyptic number.

It is an amenable number.

72327529 is a deficient number, since it is larger than the sum of its proper divisors (1).

72327529 is an equidigital number, since it uses as much as digits as its factorization.

72327529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 72327529 is about 8504.5593066308. The cubic root of 72327529 is about 416.6466324945.

The spelling of 72327529 in words is "seventy-two million, three hundred twenty-seven thousand, five hundred twenty-nine".