720710841 has 4 divisors (see below), whose sum is σ = 960947792. Its totient is φ = 480473892.

The previous prime is 720710839. The next prime is 720710863. The reversal of 720710841 is 148017027.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148017027 = 3 ⋅49339009.

It is not a de Polignac number, because 720710841 - 2¹ = 720710839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720710799 and 720710808.

It is not an unprimeable number, because it can be changed into a prime (720710821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120118471 + ... + 120118476.

It is an arithmetic number, because the mean of its divisors is an integer number (240236948).

Almost surely, 2^720710841 is an apocalyptic number.

It is an amenable number.

720710841 is a deficient number, since it is larger than the sum of its proper divisors (240236951).

720710841 is a wasteful number, since it uses less digits than its factorization.

720710841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240236950.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 720710841 is about 26846.0582022762. The cubic root of 720710841 is about 896.5758121317.

Adding to 720710841 its reverse (148017027), we get a palindrome (868727868).

The spelling of 720710841 in words is "seven hundred twenty million, seven hundred ten thousand, eight hundred forty-one".