5771721 has 8 divisors (see below), whose sum is σ = 8148384. Its totient is φ = 3621440.

The previous prime is 5771707. The next prime is 5771723. The reversal of 5771721 is 1271775.

5771721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5771721 - 2¹⁰ = 5770697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5771723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56535 + ... + 56636.

It is an arithmetic number, because the mean of its divisors is an integer number (1018548).

Almost surely, 2^5771721 is an apocalyptic number.

5771721 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5771721 is a deficient number, since it is larger than the sum of its proper divisors (2376663).

5771721 is a wasteful number, since it uses less digits than its factorization.

5771721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113191.

The product of its digits is 3430, while the sum is 30.

The square root of 5771721 is about 2402.4406340220. The cubic root of 5771721 is about 179.3776967062.

The spelling of 5771721 in words is "five million, seven hundred seventy-one thousand, seven hundred twenty-one".