628304973 has 16 divisors (see below), whose sum is σ = 848331456. Its totient is φ = 413602560.

The previous prime is 628304969. The next prime is 628305043. The reversal of 628304973 is 379403826.

628304973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 628304973 - 2² = 628304969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628300973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90558 + ... + 97248.

It is an arithmetic number, because the mean of its divisors is an integer number (53020716).

Almost surely, 2^628304973 is an apocalyptic number.

It is an amenable number.

628304973 is a deficient number, since it is larger than the sum of its proper divisors (220026483).

628304973 is a wasteful number, since it uses less digits than its factorization.

628304973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 628304973 is about 25066.0123075052. The cubic root of 628304973 is about 856.4923712051.

The spelling of 628304973 in words is "six hundred twenty-eight million, three hundred four thousand, nine hundred seventy-three".