628631926 has 16 divisors (see below), whose sum is σ = 1040251968. Its totient is φ = 283060800.

The previous prime is 628631923. The next prime is 628631947. The reversal of 628631926 is 629136826.

628631926 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 (628631923) 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, 293790 + ... + 295921.

It is an arithmetic number, because the mean of its divisors is an integer number (65015748).

Almost surely, 2^628631926 is an apocalyptic number.

628631926 is a deficient number, since it is larger than the sum of its proper divisors (411620042).

628631926 is a wasteful number, since it uses less digits than its factorization.

628631926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589767.

The product of its digits is 186624, while the sum is 43.

The square root of 628631926 is about 25072.5332984124. The cubic root of 628631926 is about 856.6409106365.

The spelling of 628631926 in words is "six hundred twenty-eight million, six hundred thirty-one thousand, nine hundred twenty-six".