628365755 has 4 divisors (see below), whose sum is σ = 754038912. Its totient is φ = 502692600.

The previous prime is 628365667. The next prime is 628365761. The reversal of 628365755 is 557563826.

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

It is not a de Polignac number, because 628365755 - 2⁸ = 628365499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62836571 + ... + 62836580.

It is an arithmetic number, because the mean of its divisors is an integer number (188509728).

Almost surely, 2^628365755 is an apocalyptic number.

628365755 is a deficient number, since it is larger than the sum of its proper divisors (125673157).

628365755 is a wasteful number, since it uses less digits than its factorization.

628365755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125673156.

The product of its digits is 1512000, while the sum is 47.

The square root of 628365755 is about 25067.2247167492. The cubic root of 628365755 is about 856.5199892371.

The spelling of 628365755 in words is "six hundred twenty-eight million, three hundred sixty-five thousand, seven hundred fifty-five".