720342263 has 2 divisors, whose sum is σ = 720342264. Its totient is φ = 720342262.

The previous prime is 720342247. The next prime is 720342283. The reversal of 720342263 is 362243027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 720342263 - 2⁴ = 720342247 is a prime.

It is a super-2 number, since 2×720342263² = 1037785951727922338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720342283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360171131 + 360171132.

It is an arithmetic number, because the mean of its divisors is an integer number (360171132).

Almost surely, 2^720342263 is an apocalyptic number.

720342263 is a deficient number, since it is larger than the sum of its proper divisors (1).

720342263 is an equidigital number, since it uses as much as digits as its factorization.

720342263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 720342263 is about 26839.1926666955. The cubic root of 720342263 is about 896.4229470943.

The spelling of 720342263 in words is "seven hundred twenty million, three hundred forty-two thousand, two hundred sixty-three".