627628345 has 4 divisors (see below), whose sum is σ = 753154020. Its totient is φ = 502102672.

The previous prime is 627628333. The next prime is 627628361. The reversal of 627628345 is 543826726.

627628345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 210366016 + 417262329 = 14504^2 + 20427^2 .

It is a cyclic number.

It is not a de Polignac number, because 627628345 - 2²⁵ = 594073913 is a prime.

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, 62762830 + ... + 62762839.

It is an arithmetic number, because the mean of its divisors is an integer number (188288505).

Almost surely, 2^627628345 is an apocalyptic number.

It is an amenable number.

627628345 is a deficient number, since it is larger than the sum of its proper divisors (125525675).

627628345 is a wasteful number, since it uses less digits than its factorization.

627628345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125525674.

The product of its digits is 483840, while the sum is 43.

The square root of 627628345 is about 25052.5117503216. The cubic root of 627628345 is about 856.1848056637.

The spelling of 627628345 in words is "six hundred twenty-seven million, six hundred twenty-eight thousand, three hundred forty-five".