628799 has 2 divisors, whose sum is σ = 628800. Its totient is φ = 628798.

The previous prime is 628787. The next prime is 628801. The reversal of 628799 is 997826.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 628799 - 2⁴ = 628783 is a prime.

Together with 628801, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314399 + 314400.

It is an arithmetic number, because the mean of its divisors is an integer number (314400).

2⁶²⁸⁷⁹⁹ is an apocalyptic number.

628799 is a deficient number, since it is larger than the sum of its proper divisors (1).

628799 is an equidigital number, since it uses as much as digits as its factorization.

628799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 628799 is about 792.9684735221. The cubic root of 628799 is about 85.6716794865.

The spelling of 628799 in words is "six hundred twenty-eight thousand, seven hundred ninety-nine".