627647245 has 16 divisors (see below), whose sum is σ = 765640512. Its totient is φ = 493863040.

The previous prime is 627647231. The next prime is 627647257. The reversal of 627647245 is 542746726.

It is not a de Polignac number, because 627647245 - 2¹⁹ = 627122957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93450 + ... + 99940.

It is an arithmetic number, because the mean of its divisors is an integer number (47852532).

Almost surely, 2^627647245 is an apocalyptic number.

It is an amenable number.

627647245 is a deficient number, since it is larger than the sum of its proper divisors (137993267).

627647245 is a wasteful number, since it uses less digits than its factorization.

627647245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812.

The product of its digits is 564480, while the sum is 43.

The square root of 627647245 is about 25052.8889551684. Note that the first 3 decimals coincide. The cubic root of 627647245 is about 856.1933997787.

The spelling of 627647245 in words is "six hundred twenty-seven million, six hundred forty-seven thousand, two hundred forty-five".