628383826 has 16 divisors (see below), whose sum is σ = 1111979520. Its totient is φ = 260619840.

The previous prime is 628383817. The next prime is 628383829.

628383826 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (628383829) 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, 723511 + ... + 724378.

It is an arithmetic number, because the mean of its divisors is an integer number (69498720).

Almost surely, 2^628383826 is an apocalyptic number.

628383826 is a deficient number, since it is larger than the sum of its proper divisors (483595694).

628383826 is a wasteful number, since it uses less digits than its factorization.

628383826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447929.

The product of its digits is 663552, while the sum is 46.

The square root of 628383826 is about 25067.5851649097. The cubic root of 628383826 is about 856.5281999669.

It can be divided in two parts, 6283 and 83826, that added together give a palindrome (90109).

The spelling of 628383826 in words is "six hundred twenty-eight million, three hundred eighty-three thousand, eight hundred twenty-six".