628662692 has 12 divisors (see below), whose sum is σ = 1257325440. Its totient is φ = 269426856.

The previous prime is 628662689. The next prime is 628662701. The reversal of 628662692 is 296266826.

It is a happy number.

628662692 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11226092 + ... + 11226147.

It is an arithmetic number, because the mean of its divisors is an integer number (104777120).

Almost surely, 2^628662692 is an apocalyptic number.

It is an amenable number.

628662692 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

628662692 is a wasteful number, since it uses less digits than its factorization.

628662692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22452250 (or 22452248 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The square root of 628662692 is about 25073.1468308228. The cubic root of 628662692 is about 856.6548854196.

The spelling of 628662692 in words is "six hundred twenty-eight million, six hundred sixty-two thousand, six hundred ninety-two".