627628871 has 2 divisors, whose sum is σ = 627628872. Its totient is φ = 627628870.

The previous prime is 627628811. The next prime is 627628877. The reversal of 627628871 is 178826726.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 627628871 - 2¹⁴ = 627612487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (627628877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313814435 + 313814436.

It is an arithmetic number, because the mean of its divisors is an integer number (313814436).

Almost surely, 2^627628871 is an apocalyptic number.

627628871 is a deficient number, since it is larger than the sum of its proper divisors (1).

627628871 is an equidigital number, since it uses as much as digits as its factorization.

627628871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 47.

The square root of 627628871 is about 25052.5222482687. The cubic root of 627628871 is about 856.1850448462.

The spelling of 627628871 in words is "six hundred twenty-seven million, six hundred twenty-eight thousand, eight hundred seventy-one".