628028741 has 2 divisors, whose sum is σ = 628028742. Its totient is φ = 628028740.

The previous prime is 628028719. The next prime is 628028743. The reversal of 628028741 is 147820826.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 560032225 + 67996516 = 23665^2 + 8246^2 .

It is a cyclic number.

It is not a de Polignac number, because 628028741 - 2¹⁸ = 627766597 is a prime.

Together with 628028743, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 628028695 and 628028704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628028743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314014370 + 314014371.

It is an arithmetic number, because the mean of its divisors is an integer number (314014371).

Almost surely, 2^628028741 is an apocalyptic number.

It is an amenable number.

628028741 is a deficient number, since it is larger than the sum of its proper divisors (1).

628028741 is an equidigital number, since it uses as much as digits as its factorization.

628028741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 628028741 is about 25060.5016111011. The cubic root of 628028741 is about 856.3668348857.

The spelling of 628028741 in words is "six hundred twenty-eight million, twenty-eight thousand, seven hundred forty-one".