628799039 has 8 divisors (see below), whose sum is σ = 688407120. Its totient is φ = 569598400.

The previous prime is 628799023. The next prime is 628799051. The reversal of 628799039 is 930997826.

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 628799039 - 2⁴ = 628799023 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 (628799839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98624 + ... + 104805.

It is an arithmetic number, because the mean of its divisors is an integer number (86050890).

Almost surely, 2^628799039 is an apocalyptic number.

628799039 is a deficient number, since it is larger than the sum of its proper divisors (59608081).

628799039 is a wasteful number, since it uses less digits than its factorization.

628799039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203721.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 628799039 is about 25075.8656680084. The cubic root of 628799039 is about 856.7168125770.

The spelling of 628799039 in words is "six hundred twenty-eight million, seven hundred ninety-nine thousand, thirty-nine".