628619053 has 4 divisors (see below), whose sum is σ = 629288028. Its totient is φ = 627950080.

The previous prime is 628619041. The next prime is 628619083. The reversal of 628619053 is 350916826.

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

It can be written as a sum of positive squares in 2 ways, for example, as 427745124 + 200873929 = 20682^2 + 14173^2 .

It is a cyclic number.

It is not a de Polignac number, because 628619053 - 2²⁵ = 595064621 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 628618997 and 628619015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628619083) 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, 333076 + ... + 334957.

It is an arithmetic number, because the mean of its divisors is an integer number (157322007).

Almost surely, 2^628619053 is an apocalyptic number.

It is an amenable number.

628619053 is a deficient number, since it is larger than the sum of its proper divisors (668975).

628619053 is an equidigital number, since it uses as much as digits as its factorization.

628619053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668974.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 628619053 is about 25072.2765819141. The cubic root of 628619053 is about 856.6350632223.

The spelling of 628619053 in words is "six hundred twenty-eight million, six hundred nineteen thousand, fifty-three".