628807135 has 16 divisors (see below), whose sum is σ = 871588512. Its totient is φ = 430412800.

The previous prime is 628807133. The next prime is 628807141. The reversal of 628807135 is 531708826.

It is not a de Polignac number, because 628807135 - 2¹ = 628807133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628807133) 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, 335326 + ... + 337195.

It is an arithmetic number, because the mean of its divisors is an integer number (54474282).

Almost surely, 2^628807135 is an apocalyptic number.

628807135 is a deficient number, since it is larger than the sum of its proper divisors (242781377).

628807135 is a wasteful number, since it uses less digits than its factorization.

628807135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672554.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 628807135 is about 25076.0270976086. The cubic root of 628807135 is about 856.7204894006.

The spelling of 628807135 in words is "six hundred twenty-eight million, eight hundred seven thousand, one hundred thirty-five".