4072288729 has 2 divisors, whose sum is σ = 4072288730. Its totient is φ = 4072288728.

The previous prime is 4072288687. The next prime is 4072288739. The reversal of 4072288729 is 9278822704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3925273104 + 147015625 = 62652^2 + 12125^2 .

It is a cyclic number.

It is not a de Polignac number, because 4072288729 - 2²³ = 4063900121 is a prime.

It is a super-3 number, since 3×4072288729³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4072288739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2036144364 + 2036144365.

It is an arithmetic number, because the mean of its divisors is an integer number (2036144365).

Almost surely, 2^4072288729 is an apocalyptic number.

It is an amenable number.

4072288729 is a deficient number, since it is larger than the sum of its proper divisors (1).

4072288729 is an equidigital number, since it uses as much as digits as its factorization.

4072288729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 4072288729 is about 63814.4868270521. The cubic root of 4072288729 is about 1596.9066181441.

The spelling of 4072288729 in words is "four billion, seventy-two million, two hundred eighty-eight thousand, seven hundred twenty-nine".