720380473 has 4 divisors (see below), whose sum is σ = 720441088. Its totient is φ = 720319860.

The previous prime is 720380471. The next prime is 720380513. The reversal of 720380473 is 374083027.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 374083027 = 1283 ⋅291569.

It is a cyclic number.

It is not a de Polignac number, because 720380473 - 2¹ = 720380471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720380471) 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, 5961 + ... + 38422.

It is an arithmetic number, because the mean of its divisors is an integer number (180110272).

Almost surely, 2^720380473 is an apocalyptic number.

It is an amenable number.

720380473 is a deficient number, since it is larger than the sum of its proper divisors (60615).

720380473 is a wasteful number, since it uses less digits than its factorization.

720380473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60614.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 720380473 is about 26839.9044893979. The cubic root of 720380473 is about 896.4387968355.

The spelling of 720380473 in words is "seven hundred twenty million, three hundred eighty thousand, four hundred seventy-three".