573480721 has 4 divisors (see below), whose sum is σ = 625615344. Its totient is φ = 521346100.

The previous prime is 573480707. The next prime is 573480751. The reversal of 573480721 is 127084375.

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.

It is not a de Polignac number, because 573480721 - 2⁹ = 573480209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573480701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26067295 + ... + 26067316.

It is an arithmetic number, because the mean of its divisors is an integer number (156403836).

Almost surely, 2^573480721 is an apocalyptic number.

It is an amenable number.

573480721 is a deficient number, since it is larger than the sum of its proper divisors (52134623).

573480721 is a wasteful number, since it uses less digits than its factorization.

573480721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52134622.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 573480721 is about 23947.4575059650. The cubic root of 573480721 is about 830.8187213397.

The spelling of 573480721 in words is "five hundred seventy-three million, four hundred eighty thousand, seven hundred twenty-one".