628728910 has 16 divisors (see below), whose sum is σ = 1132027776. Its totient is φ = 251421408.

The previous prime is 628728853. The next prime is 628728913. The reversal of 628728910 is 19827826.

628728910 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628728913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43972 + ... + 56488.

It is an arithmetic number, because the mean of its divisors is an integer number (70751736).

Almost surely, 2^628728910 is an apocalyptic number.

628728910 is a deficient number, since it is larger than the sum of its proper divisors (503298866).

628728910 is a wasteful number, since it uses less digits than its factorization.

628728910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17547.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 628728910 is about 25074.4672924471. The cubic root of 628728910 is about 856.6849619520.

The spelling of 628728910 in words is "six hundred twenty-eight million, seven hundred twenty-eight thousand, nine hundred ten".