720299 has 2 divisors, whose sum is σ = 720300. Its totient is φ = 720298.

The previous prime is 720289. The next prime is 720301. The reversal of 720299 is 992027.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 720299 - 2⁴ = 720283 is a prime.

Together with 720301, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (720229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360149 + 360150.

It is an arithmetic number, because the mean of its divisors is an integer number (360150).

2⁷²⁰²⁹⁹ is an apocalyptic number.

720299 is a deficient number, since it is larger than the sum of its proper divisors (1).

720299 is an equidigital number, since it uses as much as digits as its factorization.

720299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 720299 is about 848.7043065756. The cubic root of 720299 is about 89.6405000661.

The spelling of 720299 in words is "seven hundred twenty thousand, two hundred ninety-nine".