628673959 has 8 divisors (see below), whose sum is σ = 636503120. Its totient is φ = 620882496.

The previous prime is 628673953. The next prime is 628673963. The reversal of 628673959 is 959376826.

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

It is a cyclic number.

It is not a de Polignac number, because 628673959 - 2¹⁵ = 628641191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628673953) 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 7 ways as a sum of consecutive naturals, for example, 24904 + ... + 43330.

It is an arithmetic number, because the mean of its divisors is an integer number (79562890).

Almost surely, 2^628673959 is an apocalyptic number.

628673959 is a deficient number, since it is larger than the sum of its proper divisors (7829161).

628673959 is a wasteful number, since it uses less digits than its factorization.

628673959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18849.

The product of its digits is 4898880, while the sum is 55.

The square root of 628673959 is about 25073.3715124233. The cubic root of 628673959 is about 856.6600030940.

The spelling of 628673959 in words is "six hundred twenty-eight million, six hundred seventy-three thousand, nine hundred fifty-nine".