560351721 has 4 divisors (see below), whose sum is σ = 747135632. Its totient is φ = 373567812.

The previous prime is 560351713. The next prime is 560351731. The reversal of 560351721 is 127153065.

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 560351721 - 2³ = 560351713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (560351711) 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, 93391951 + ... + 93391956.

It is an arithmetic number, because the mean of its divisors is an integer number (186783908).

Almost surely, 2^560351721 is an apocalyptic number.

It is an amenable number.

560351721 is a deficient number, since it is larger than the sum of its proper divisors (186783911).

560351721 is a wasteful number, since it uses less digits than its factorization.

560351721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186783910.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 560351721 is about 23671.7494283798. The cubic root of 560351721 is about 824.4295884403.

The spelling of 560351721 in words is "five hundred sixty million, three hundred fifty-one thousand, seven hundred twenty-one".