705431327 has 2 divisors, whose sum is σ = 705431328. Its totient is φ = 705431326.

The previous prime is 705431263. The next prime is 705431387. The reversal of 705431327 is 723134507.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 705431327 - 2⁶ = 705431263 is a prime.

It is a super-2 number, since 2×705431327² = 995266714225961858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 705431293 and 705431302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705431387) by changing a digit.

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 as a sum of consecutive naturals, namely, 352715663 + 352715664.

It is an arithmetic number, because the mean of its divisors is an integer number (352715664).

Almost surely, 2^705431327 is an apocalyptic number.

705431327 is a deficient number, since it is larger than the sum of its proper divisors (1).

705431327 is an equidigital number, since it uses as much as digits as its factorization.

705431327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 705431327 is about 26559.9572100559. The cubic root of 705431327 is about 890.1945149898.

The spelling of 705431327 in words is "seven hundred five million, four hundred thirty-one thousand, three hundred twenty-seven".