5701721 has 4 divisors (see below), whose sum is σ = 5716992. Its totient is φ = 5686452.

The previous prime is 5701693. The next prime is 5701727. The reversal of 5701721 is 1271075.

It is a happy number.

5701721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5701721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5701727) 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, 7061 + ... + 7826.

It is an arithmetic number, because the mean of its divisors is an integer number (1429248).

Almost surely, 2^5701721 is an apocalyptic number.

It is an amenable number.

5701721 is a deficient number, since it is larger than the sum of its proper divisors (15271).

5701721 is a wasteful number, since it uses less digits than its factorization.

5701721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15270.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 5701721 is about 2387.8276738492. The cubic root of 5701721 is about 178.6495750308.

Adding to 5701721 its reverse (1271075), we get a palindrome (6972796).

The spelling of 5701721 in words is "five million, seven hundred one thousand, seven hundred twenty-one".