628115355 has 48 divisors (see below), whose sum is σ = 1246365120. Its totient is φ = 286654464.

The previous prime is 628115351. The next prime is 628115381. The reversal of 628115355 is 553511826.

It is a happy number.

628115355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628115355 - 2² = 628115351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (628115351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 240939 + ... + 243531.

It is an arithmetic number, because the mean of its divisors is an integer number (25965940).

Almost surely, 2^628115355 is an apocalyptic number.

628115355 is a deficient number, since it is larger than the sum of its proper divisors (618249765).

628115355 is a wasteful number, since it uses less digits than its factorization.

628115355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380 (or 3377 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 628115355 is about 25062.2296494147. The cubic root of 628115355 is about 856.4062014213.

The spelling of 628115355 in words is "six hundred twenty-eight million, one hundred fifteen thousand, three hundred fifty-five".