628110403 has 4 divisors (see below), whose sum is σ = 630738720. Its totient is φ = 625482088.

The previous prime is 628110361. The next prime is 628110421. The reversal of 628110403 is 304011826.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304011826 = 2 ⋅152005913.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628110403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628110103) 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, 1313800 + ... + 1314277.

It is an arithmetic number, because the mean of its divisors is an integer number (157684680).

Almost surely, 2^628110403 is an apocalyptic number.

628110403 is a deficient number, since it is larger than the sum of its proper divisors (2628317).

628110403 is a wasteful number, since it uses less digits than its factorization.

628110403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628316.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 628110403 is about 25062.1308551368. The cubic root of 628110403 is about 856.4039508079.

The spelling of 628110403 in words is "six hundred twenty-eight million, one hundred ten thousand, four hundred three".