5760721 has 4 divisors (see below), whose sum is σ = 5768500. Its totient is φ = 5752944.

The previous prime is 5760719. The next prime is 5760749. The reversal of 5760721 is 1270675.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4260096 + 1500625 = 2064^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 5760721 - 2¹ = 5760719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5760721.

It is not an unprimeable number, because it can be changed into a prime (5760121) 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, 2646 + ... + 4303.

It is an arithmetic number, because the mean of its divisors is an integer number (1442125).

Almost surely, 2^5760721 is an apocalyptic number.

It is an amenable number.

5760721 is a deficient number, since it is larger than the sum of its proper divisors (7779).

5760721 is an equidigital number, since it uses as much as digits as its factorization.

5760721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 5760721 is about 2400.1502036331. The cubic root of 5760721 is about 179.2636689318.

The spelling of 5760721 in words is "five million, seven hundred sixty thousand, seven hundred twenty-one".