628136959 has 2 divisors, whose sum is σ = 628136960. Its totient is φ = 628136958.

The previous prime is 628136939. The next prime is 628137019. The reversal of 628136959 is 959631826.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 628136959 - 2²³ = 619748351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628136909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314068479 + 314068480.

It is an arithmetic number, because the mean of its divisors is an integer number (314068480).

Almost surely, 2^628136959 is an apocalyptic number.

628136959 is a deficient number, since it is larger than the sum of its proper divisors (1).

628136959 is an equidigital number, since it uses as much as digits as its factorization.

628136959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 49.

The square root of 628136959 is about 25062.6606528517. The cubic root of 628136959 is about 856.4160199933.

The spelling of 628136959 in words is "six hundred twenty-eight million, one hundred thirty-six thousand, nine hundred fifty-nine".