628602123 has 4 divisors (see below), whose sum is σ = 838136168. Its totient is φ = 419068080.

The previous prime is 628602113. The next prime is 628602203. The reversal of 628602123 is 321206826.

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

It is not a de Polignac number, because 628602123 - 2²⁴ = 611824907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628602103) 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 3 ways as a sum of consecutive naturals, for example, 104767018 + ... + 104767023.

It is an arithmetic number, because the mean of its divisors is an integer number (209534042).

Almost surely, 2^628602123 is an apocalyptic number.

628602123 is a deficient number, since it is larger than the sum of its proper divisors (209534045).

628602123 is a wasteful number, since it uses less digits than its factorization.

628602123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209534044.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 628602123 is about 25071.9389557330. The cubic root of 628602123 is about 856.6273728404.

Adding to 628602123 its reverse (321206826), we get a palindrome (949808949).

The spelling of 628602123 in words is "six hundred twenty-eight million, six hundred two thousand, one hundred twenty-three".