627538081 has 2 divisors, whose sum is σ = 627538082. Its totient is φ = 627538080.

The previous prime is 627538069. The next prime is 627538117. The reversal of 627538081 is 180835726.

627538081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 515517025 + 112021056 = 22705^2 + 10584^2 .

It is a cyclic number.

It is not a de Polignac number, because 627538081 - 2⁹ = 627537569 is a prime.

It is a super-2 number, since 2×627538081² = 787608086210325122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (627538481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313769040 + 313769041.

It is an arithmetic number, because the mean of its divisors is an integer number (313769041).

Almost surely, 2^627538081 is an apocalyptic number.

It is an amenable number.

627538081 is a deficient number, since it is larger than the sum of its proper divisors (1).

627538081 is an equidigital number, since it uses as much as digits as its factorization.

627538081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 627538081 is about 25050.7101895335. The cubic root of 627538081 is about 856.1437588823.

The spelling of 627538081 in words is "six hundred twenty-seven million, five hundred thirty-eight thousand, eighty-one".