628964835 has 8 divisors (see below), whose sum is σ = 1006343760. Its totient is φ = 335447904.

The previous prime is 628964807. The next prime is 628964837. The reversal of 628964835 is 538469826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 628964835 - 2²⁰ = 627916259 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (628964837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20965480 + ... + 20965509.

It is an arithmetic number, because the mean of its divisors is an integer number (125792970).

Almost surely, 2^628964835 is an apocalyptic number.

628964835 is a deficient number, since it is larger than the sum of its proper divisors (377378925).

628964835 is a wasteful number, since it uses less digits than its factorization.

628964835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41930997.

The product of its digits is 2488320, while the sum is 51.

The square root of 628964835 is about 25079.1713379848. The cubic root of 628964835 is about 856.7921030539.

The spelling of 628964835 in words is "six hundred twenty-eight million, nine hundred sixty-four thousand, eight hundred thirty-five".