720263 has 4 divisors (see below), whose sum is σ = 722568. Its totient is φ = 717960.

The previous prime is 720257. The next prime is 720281. The reversal of 720263 is 362027.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 720263 - 2⁸ = 720007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720253) 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 in 3 ways as a sum of consecutive naturals, for example, 593 + ... + 1338.

It is an arithmetic number, because the mean of its divisors is an integer number (180642).

2⁷²⁰²⁶³ is an apocalyptic number.

720263 is a deficient number, since it is larger than the sum of its proper divisors (2305).

720263 is a wasteful number, since it uses less digits than its factorization.

720263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 720263 is about 848.6830975105. The cubic root of 720263 is about 89.6390066531.

The spelling of 720263 in words is "seven hundred twenty thousand, two hundred sixty-three".