650623271 has 2 divisors, whose sum is σ = 650623272. Its totient is φ = 650623270.

The previous prime is 650623249. The next prime is 650623273. The reversal of 650623271 is 172326056.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650623271 is a prime.

It is a Sophie Germain prime.

Together with 650623273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650623273) 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 as a sum of consecutive naturals, namely, 325311635 + 325311636.

It is an arithmetic number, because the mean of its divisors is an integer number (325311636).

Almost surely, 2^650623271 is an apocalyptic number.

650623271 is a deficient number, since it is larger than the sum of its proper divisors (1).

650623271 is an equidigital number, since it uses as much as digits as its factorization.

650623271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 650623271 is about 25507.3179891575. The cubic root of 650623271 is about 866.5158895658.

The spelling of 650623271 in words is "six hundred fifty million, six hundred twenty-three thousand, two hundred seventy-one".