628580319 has 4 divisors (see below), whose sum is σ = 838107096. Its totient is φ = 419053544.

The previous prime is 628580299. The next prime is 628580339. The reversal of 628580319 is 913085826.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (628580299) and next prime (628580339).

It is a cyclic number.

It is not a de Polignac number, because 628580319 - 2¹⁹ = 628056031 is a prime.

It is a super-2 number, since 2×628580319² = 790226434868283522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628580339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104763384 + ... + 104763389.

It is an arithmetic number, because the mean of its divisors is an integer number (209526774).

Almost surely, 2^628580319 is an apocalyptic number.

628580319 is a deficient number, since it is larger than the sum of its proper divisors (209526777).

628580319 is a wasteful number, since it uses less digits than its factorization.

628580319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209526776.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 628580319 is about 25071.5041232073. The cubic root of 628580319 is about 856.6174682609.

The spelling of 628580319 in words is "six hundred twenty-eight million, five hundred eighty thousand, three hundred nineteen".