5700721 has 4 divisors (see below), whose sum is σ = 6139252. Its totient is φ = 5262192.

The previous prime is 5700713. The next prime is 5700731. The reversal of 5700721 is 1270075.

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 360000 + 5340721 = 600^2 + 2311^2 .

It is not a de Polignac number, because 5700721 - 2³ = 5700713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5700692 and 5700701.

It is not an unprimeable number, because it can be changed into a prime (5700731) 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, 219246 + ... + 219271.

It is an arithmetic number, because the mean of its divisors is an integer number (1534813).

Almost surely, 2^5700721 is an apocalyptic number.

It is an amenable number.

5700721 is a deficient number, since it is larger than the sum of its proper divisors (438531).

5700721 is a wasteful number, since it uses less digits than its factorization.

5700721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438530.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 5700721 is about 2387.6182693220. The cubic root of 5700721 is about 178.6391302300.

Adding to 5700721 its reverse (1270075), we get a palindrome (6970796).

The spelling of 5700721 in words is "five million, seven hundred thousand, seven hundred twenty-one".