628030907 has 8 divisors (see below), whose sum is σ = 735256032. Its totient is φ = 525182400.

The previous prime is 628030901. The next prime is 628030913. The reversal of 628030907 is 709030826.

It is an interprime number because it is at equal distance from previous prime (628030901) and next prime (628030913).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628030907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (628030901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093844 + ... + 1094417.

It is an arithmetic number, because the mean of its divisors is an integer number (91907004).

Almost surely, 2^628030907 is an apocalyptic number.

628030907 is a deficient number, since it is larger than the sum of its proper divisors (107225125).

628030907 is a wasteful number, since it uses less digits than its factorization.

628030907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188309.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 628030907 is about 25060.5448264797. The cubic root of 628030907 is about 856.3678193887.

The spelling of 628030907 in words is "six hundred twenty-eight million, thirty thousand, nine hundred seven".