627716861 has 8 divisors (see below), whose sum is σ = 670310400. Its totient is φ = 586519920.

The previous prime is 627716849. The next prime is 627716909. The reversal of 627716861 is 168617726.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 627716861 - 2¹⁴ = 627700477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (627716801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348221 + ... + 350018.

It is an arithmetic number, because the mean of its divisors is an integer number (83788800).

Almost surely, 2^627716861 is an apocalyptic number.

It is an amenable number.

627716861 is a deficient number, since it is larger than the sum of its proper divisors (42593539).

627716861 is a wasteful number, since it uses less digits than its factorization.

627716861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698299.

The product of its digits is 169344, while the sum is 44.

The square root of 627716861 is about 25054.2782973288. The cubic root of 627716861 is about 856.2250537354.

The spelling of 627716861 in words is "six hundred twenty-seven million, seven hundred sixteen thousand, eight hundred sixty-one".