628885727 has 2 divisors, whose sum is σ = 628885728. Its totient is φ = 628885726.

The previous prime is 628885723. The next prime is 628885801. The reversal of 628885727 is 727588826.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 628885727 - 2² = 628885723 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 (628885723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314442863 + 314442864.

It is an arithmetic number, because the mean of its divisors is an integer number (314442864).

Almost surely, 2^628885727 is an apocalyptic number.

628885727 is a deficient number, since it is larger than the sum of its proper divisors (1).

628885727 is an equidigital number, since it uses as much as digits as its factorization.

628885727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3010560, while the sum is 53.

The square root of 628885727 is about 25077.5941230414. The cubic root of 628885727 is about 856.7561805625.

The spelling of 628885727 in words is "six hundred twenty-eight million, eight hundred eighty-five thousand, seven hundred twenty-seven".