646310627 has 2 divisors, whose sum is σ = 646310628. Its totient is φ = 646310626.

The previous prime is 646310611. The next prime is 646310629. The reversal of 646310627 is 726013646.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 646310627 - 2⁴ = 646310611 is a prime.

Together with 646310629, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (646310629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323155313 + 323155314.

It is an arithmetic number, because the mean of its divisors is an integer number (323155314).

Almost surely, 2^646310627 is an apocalyptic number.

646310627 is a deficient number, since it is larger than the sum of its proper divisors (1).

646310627 is an equidigital number, since it uses as much as digits as its factorization.

646310627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 646310627 is about 25422.6400477999. The cubic root of 646310627 is about 864.5970823332.

The spelling of 646310627 in words is "six hundred forty-six million, three hundred ten thousand, six hundred twenty-seven".