312727799 has 2 divisors, whose sum is σ = 312727800. Its totient is φ = 312727798.

The previous prime is 312727771. The next prime is 312727817. The reversal of 312727799 is 997727213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312727799 - 2¹⁶ = 312662263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312727759) 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, 156363899 + 156363900.

It is an arithmetic number, because the mean of its divisors is an integer number (156363900).

Almost surely, 2^312727799 is an apocalyptic number.

312727799 is a deficient number, since it is larger than the sum of its proper divisors (1).

312727799 is an equidigital number, since it uses as much as digits as its factorization.

312727799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 333396, while the sum is 47.

The square root of 312727799 is about 17684.1114846067. Note that the first 3 decimals coincide. The cubic root of 312727799 is about 678.7692551971.

The spelling of 312727799 in words is "three hundred twelve million, seven hundred twenty-seven thousand, seven hundred ninety-nine".