628914286 has 96 divisors (see below), whose sum is σ = 1346752512. Its totient is φ = 212682240.

The previous prime is 628914281. The next prime is 628914301. The reversal of 628914286 is 682419826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628914281) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 578035 + ... + 579121.

It is an arithmetic number, because the mean of its divisors is an integer number (14028672).

Almost surely, 2^628914286 is an apocalyptic number.

628914286 is an abundant number, since it is smaller than the sum of its proper divisors (717838226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628914286 is a wasteful number, since it uses less digits than its factorization.

628914286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154 (or 1137 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 628914286 is about 25078.1635292539. The cubic root of 628914286 is about 856.7691493889.

The spelling of 628914286 in words is "six hundred twenty-eight million, nine hundred fourteen thousand, two hundred eighty-six".