627988441 has 2 divisors, whose sum is σ = 627988442. Its totient is φ = 627988440.

The previous prime is 627988433. The next prime is 627988477. The reversal of 627988441 is 144889726.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626450841 + 1537600 = 25029^2 + 1240^2 .

It is a cyclic number.

It is not a de Polignac number, because 627988441 - 2³ = 627988433 is a prime.

It is a super-2 number, since 2×627988441² = 788738964059220962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (627983441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313994220 + 313994221.

It is an arithmetic number, because the mean of its divisors is an integer number (313994221).

Almost surely, 2^627988441 is an apocalyptic number.

It is an amenable number.

627988441 is a deficient number, since it is larger than the sum of its proper divisors (1).

627988441 is an equidigital number, since it uses as much as digits as its factorization.

627988441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 774144, while the sum is 49.

The square root of 627988441 is about 25059.6975440647. The cubic root of 627988441 is about 856.3485170820.

The spelling of 627988441 in words is "six hundred twenty-seven million, nine hundred eighty-eight thousand, four hundred forty-one".