628696741 has 2 divisors, whose sum is σ = 628696742. Its totient is φ = 628696740.

The previous prime is 628696723. The next prime is 628696751. The reversal of 628696741 is 147696826.

628696741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 489692641 + 139004100 = 22129^2 + 11790^2 .

It is a cyclic number.

It is not a de Polignac number, because 628696741 - 2¹⁹ = 628172453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628696721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314348370 + 314348371.

It is an arithmetic number, because the mean of its divisors is an integer number (314348371).

Almost surely, 2^628696741 is an apocalyptic number.

It is an amenable number.

628696741 is a deficient number, since it is larger than the sum of its proper divisors (1).

628696741 is an equidigital number, since it uses as much as digits as its factorization.

628696741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 49.

The square root of 628696741 is about 25073.8258149808. The cubic root of 628696741 is about 856.6703509021.

The spelling of 628696741 in words is "six hundred twenty-eight million, six hundred ninety-six thousand, seven hundred forty-one".