628228853 has 12 divisors (see below), whose sum is σ = 732947040. Its totient is φ = 538467468.

The previous prime is 628228847. The next prime is 628228859. The reversal of 628228853 is 358822826.

It is an interprime number because it is at equal distance from previous prime (628228847) and next prime (628228859).

It is not a de Polignac number, because 628228853 - 2⁶ = 628228789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628228859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1883 + ... + 35496.

It is an arithmetic number, because the mean of its divisors is an integer number (61078920).

Almost surely, 2^628228853 is an apocalyptic number.

It is an amenable number.

628228853 is a deficient number, since it is larger than the sum of its proper divisors (104718187).

628228853 is an frugal number, since it uses more digits than its factorization.

628228853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37414 (or 37386 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 628228853 is about 25064.4938708126. The cubic root of 628228853 is about 856.4577814038.

The spelling of 628228853 in words is "six hundred twenty-eight million, two hundred twenty-eight thousand, eight hundred fifty-three".