709314643 has 2 divisors, whose sum is σ = 709314644. Its totient is φ = 709314642.

The previous prime is 709314629. The next prime is 709314667. The reversal of 709314643 is 346413907.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-709314643 is a prime.

It is not a weakly prime, because it can be changed into another prime (709314743) 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, 354657321 + 354657322.

It is an arithmetic number, because the mean of its divisors is an integer number (354657322).

Almost surely, 2^709314643 is an apocalyptic number.

709314643 is a deficient number, since it is larger than the sum of its proper divisors (1).

709314643 is an equidigital number, since it uses as much as digits as its factorization.

709314643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 709314643 is about 26632.9615889784. The cubic root of 709314643 is about 891.8249985972.

It can be divided in two parts, 7093 and 14643, that added together give a triangular number (21736 = T₂₀₈).

The spelling of 709314643 in words is "seven hundred nine million, three hundred fourteen thousand, six hundred forty-three".