628753 has 2 divisors, whose sum is σ = 628754. Its totient is φ = 628752.

The previous prime is 628721. The next prime is 628757. The reversal of 628753 is 357826.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419904 + 208849 = 648^2 + 457^2 .

It is a cyclic number.

It is not a de Polignac number, because 628753 - 2⁵ = 628721 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (628757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314376 + 314377.

It is an arithmetic number, because the mean of its divisors is an integer number (314377).

2⁶²⁸⁷⁵³ is an apocalyptic number.

It is an amenable number.

628753 is a deficient number, since it is larger than the sum of its proper divisors (1).

628753 is an equidigital number, since it uses as much as digits as its factorization.

628753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 628753 is about 792.9394680554. The cubic root of 628753 is about 85.6695903221.

The spelling of 628753 in words is "six hundred twenty-eight thousand, seven hundred fifty-three".