5721017 has 4 divisors (see below), whose sum is σ = 5860596. Its totient is φ = 5581440.

The previous prime is 5721013. The next prime is 5721029. The reversal of 5721017 is 7101275.

It is a happy number.

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 2019241 + 3701776 = 1421^2 + 1924^2 .

It is a cyclic number.

It is not a de Polignac number, because 5721017 - 2² = 5721013 is a prime.

It is a super-3 number, since 3×5721017³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5720983 and 5721001.

It is not an unprimeable number, because it can be changed into a prime (5721011) 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, 69728 + ... + 69809.

It is an arithmetic number, because the mean of its divisors is an integer number (1465149).

Almost surely, 2^5721017 is an apocalyptic number.

It is an amenable number.

5721017 is a deficient number, since it is larger than the sum of its proper divisors (139579).

5721017 is a wasteful number, since it uses less digits than its factorization.

5721017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139578.

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

The square root of 5721017 is about 2391.8647537016. The cubic root of 5721017 is about 178.8508792073.

The spelling of 5721017 in words is "five million, seven hundred twenty-one thousand, seventeen".