628797268 has 24 divisors (see below), whose sum is σ = 1203096384. Its totient is φ = 285182400.

The previous prime is 628797263. The next prime is 628797311. The reversal of 628797268 is 862797826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628797263) 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 in 7 ways as a sum of consecutive naturals, for example, 4473 + ... + 35743.

It is an arithmetic number, because the mean of its divisors is an integer number (50129016).

Almost surely, 2^628797268 is an apocalyptic number.

It is an amenable number.

628797268 is a deficient number, since it is larger than the sum of its proper divisors (574299116).

628797268 is a wasteful number, since it uses less digits than its factorization.

628797268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31743 (or 31741 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 55.

The square root of 628797268 is about 25075.8303551448. The cubic root of 628797268 is about 856.7160082676.

The spelling of 628797268 in words is "six hundred twenty-eight million, seven hundred ninety-seven thousand, two hundred sixty-eight".