720297843 has 8 divisors (see below), whose sum is σ = 961710288. Its totient is φ = 479541984.

The previous prime is 720297827. The next prime is 720297869. The reversal of 720297843 is 348792027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 720297843 - 2⁴ = 720297827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 720297795 and 720297804.

It is not an unprimeable number, because it can be changed into a prime (720297883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161580 + ... + 165977.

It is an arithmetic number, because the mean of its divisors is an integer number (120213786).

Almost surely, 2^720297843 is an apocalyptic number.

720297843 is a deficient number, since it is larger than the sum of its proper divisors (241412445).

720297843 is a wasteful number, since it uses less digits than its factorization.

720297843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328293.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 720297843 is about 26838.3651327722. The cubic root of 720297843 is about 896.4045207028.

The spelling of 720297843 in words is "seven hundred twenty million, two hundred ninety-seven thousand, eight hundred forty-three".