628759939 has 2 divisors, whose sum is σ = 628759940. Its totient is φ = 628759938.

The previous prime is 628759921. The next prime is 628759979. The reversal of 628759939 is 939957826.

628759939 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 is a cyclic number.

It is not a de Polignac number, because 628759939 - 2¹⁵ = 628727171 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (628759979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314379969 + 314379970.

It is an arithmetic number, because the mean of its divisors is an integer number (314379970).

Almost surely, 2^628759939 is an apocalyptic number.

628759939 is a deficient number, since it is larger than the sum of its proper divisors (1).

628759939 is an equidigital number, since it uses as much as digits as its factorization.

628759939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 58.

The square root of 628759939 is about 25075.0860217866. The cubic root of 628759939 is about 856.6990547457.

The spelling of 628759939 in words is "six hundred twenty-eight million, seven hundred fifty-nine thousand, nine hundred thirty-nine".