628007913 has 24 divisors (see below), whose sum is σ = 977744768. Its totient is φ = 386132832.

The previous prime is 628007909. The next prime is 628007959. The reversal of 628007913 is 319700826.

It is not a de Polignac number, because 628007913 - 2² = 628007909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (628007903) 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 23 ways as a sum of consecutive naturals, for example, 266406 + ... + 268752.

Almost surely, 2^628007913 is an apocalyptic number.

It is an amenable number.

628007913 is a deficient number, since it is larger than the sum of its proper divisors (349736855).

628007913 is a wasteful number, since it uses less digits than its factorization.

628007913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653 (or 4650 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 628007913 is about 25060.0860533239. The cubic root of 628007913 is about 856.3573679062.

The spelling of 628007913 in words is "six hundred twenty-eight million, seven thousand, nine hundred thirteen".