627964123 has 2 divisors, whose sum is σ = 627964124. Its totient is φ = 627964122.

The previous prime is 627964121. The next prime is 627964163. The reversal of 627964123 is 321469726.

It is a happy number.

It is an a-pointer prime, because the next prime (627964163) can be obtained adding 627964123 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 627964123 - 2¹ = 627964121 is a prime.

Together with 627964121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (627964121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313982061 + 313982062.

It is an arithmetic number, because the mean of its divisors is an integer number (313982062).

Almost surely, 2^627964123 is an apocalyptic number.

627964123 is a deficient number, since it is larger than the sum of its proper divisors (1).

627964123 is an equidigital number, since it uses as much as digits as its factorization.

627964123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 627964123 is about 25059.2123379806. The cubic root of 627964123 is about 856.3374632946.

The spelling of 627964123 in words is "six hundred twenty-seven million, nine hundred sixty-four thousand, one hundred twenty-three".