720327679 has 2 divisors, whose sum is σ = 720327680. Its totient is φ = 720327678.

The previous prime is 720327631. The next prime is 720327733. The reversal of 720327679 is 976723027.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720327679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720327479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360163839 + 360163840.

It is an arithmetic number, because the mean of its divisors is an integer number (360163840).

Almost surely, 2^720327679 is an apocalyptic number.

720327679 is a deficient number, since it is larger than the sum of its proper divisors (1).

720327679 is an equidigital number, since it uses as much as digits as its factorization.

720327679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 43.

The square root of 720327679 is about 26838.9209730943. The cubic root of 720327679 is about 896.4168974144.

The spelling of 720327679 in words is "seven hundred twenty million, three hundred twenty-seven thousand, six hundred seventy-nine".