628793375 has 16 divisors (see below), whose sum is σ = 896840256. Its totient is φ = 431172000.

The previous prime is 628793371. The next prime is 628793381. The reversal of 628793375 is 573397826.

It is a happy number.

628793375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628793375 - 2² = 628793371 is a prime.

It is a super-2 number, since 2×628793375² = 790762216887781250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628793371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 358436 + ... + 360185.

It is an arithmetic number, because the mean of its divisors is an integer number (56052516).

Almost surely, 2^628793375 is an apocalyptic number.

628793375 is a deficient number, since it is larger than the sum of its proper divisors (268046881).

628793375 is an equidigital number, since it uses as much as digits as its factorization.

628793375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718643 (or 718633 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 50.

The square root of 628793375 is about 25075.7527304765. The cubic root of 628793375 is about 856.7142402350.

The spelling of 628793375 in words is "six hundred twenty-eight million, seven hundred ninety-three thousand, three hundred seventy-five".