628788135 has 8 divisors (see below), whose sum is σ = 1006061040. Its totient is φ = 335353664.

The previous prime is 628788119. The next prime is 628788151. The reversal of 628788135 is 531887826.

It is an interprime number because it is at equal distance from previous prime (628788119) and next prime (628788151).

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

It is a cyclic number.

It is not a de Polignac number, because 628788135 - 2⁴ = 628788119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20959590 + ... + 20959619.

It is an arithmetic number, because the mean of its divisors is an integer number (125757630).

Almost surely, 2^628788135 is an apocalyptic number.

628788135 is a deficient number, since it is larger than the sum of its proper divisors (377272905).

628788135 is a wasteful number, since it uses less digits than its factorization.

628788135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41919217.

The product of its digits is 645120, while the sum is 48.

The square root of 628788135 is about 25075.6482468550. The cubic root of 628788135 is about 856.7118604415.

The spelling of 628788135 in words is "six hundred twenty-eight million, seven hundred eighty-eight thousand, one hundred thirty-five".