628255079 has 8 divisors (see below), whose sum is σ = 645562848. Its totient is φ = 610964640.

The previous prime is 628255049. The next prime is 628255087. The reversal of 628255079 is 970552826.

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 628255079 - 2¹⁶ = 628189543 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 (628255039) 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, 109574 + ... + 115164.

It is an arithmetic number, because the mean of its divisors is an integer number (80695356).

Almost surely, 2^628255079 is an apocalyptic number.

628255079 is a deficient number, since it is larger than the sum of its proper divisors (17307769).

628255079 is a wasteful number, since it uses less digits than its factorization.

628255079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8665.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 628255079 is about 25065.0170357014. The cubic root of 628255079 is about 856.4696991146.

The spelling of 628255079 in words is "six hundred twenty-eight million, two hundred fifty-five thousand, seventy-nine".