628619912 has 16 divisors (see below), whose sum is σ = 1181550300. Its totient is φ = 313539840.

The previous prime is 628619903. The next prime is 628619933. The reversal of 628619912 is 219916826.

It can be written as a sum of positive squares in 2 ways, for example, as 465955396 + 162664516 = 21586^2 + 12754^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 92789 + ... + 99332.

Almost surely, 2^628619912 is an apocalyptic number.

It is an amenable number.

628619912 is a deficient number, since it is larger than the sum of its proper divisors (552930388).

628619912 is a wasteful number, since it uses less digits than its factorization.

628619912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192536 (or 192532 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 628619912 is about 25072.2937123830. The cubic root of 628619912 is about 856.6354534158.

The spelling of 628619912 in words is "six hundred twenty-eight million, six hundred nineteen thousand, nine hundred twelve".