628909662 has 24 divisors (see below), whose sum is σ = 1336164696. Its totient is φ = 197304448.

The previous prime is 628909651. The next prime is 628909667. The reversal of 628909662 is 266909826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628909667) 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 11 ways as a sum of consecutive naturals, for example, 179613 + ... + 183080.

It is an arithmetic number, because the mean of its divisors is an integer number (55673529).

Almost surely, 2^628909662 is an apocalyptic number.

628909662 is an abundant number, since it is smaller than the sum of its proper divisors (707255034).

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

628909662 is a wasteful number, since it uses less digits than its factorization.

628909662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362732 (or 362715 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 628909662 is about 25078.0713373258. The cubic root of 628909662 is about 856.7670496273.

The spelling of 628909662 in words is "six hundred twenty-eight million, nine hundred nine thousand, six hundred sixty-two".