628628063 has 4 divisors (see below), whose sum is σ = 718432080. Its totient is φ = 538824048.

The previous prime is 628628047. The next prime is 628628069. The reversal of 628628063 is 360826826.

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

It is not a de Polignac number, because 628628063 - 2⁴ = 628628047 is a prime.

It is a super-2 number, since 2×628628063² = 790346483182263938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 628628063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628628069) 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, 44901998 + ... + 44902011.

It is an arithmetic number, because the mean of its divisors is an integer number (179608020).

Almost surely, 2^628628063 is an apocalyptic number.

628628063 is a deficient number, since it is larger than the sum of its proper divisors (89804017).

628628063 is an equidigital number, since it uses as much as digits as its factorization.

628628063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89804016.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 628628063 is about 25072.4562618025. The cubic root of 628628063 is about 856.6391559210.

The spelling of 628628063 in words is "six hundred twenty-eight million, six hundred twenty-eight thousand, sixty-three".