5301721 has 4 divisors (see below), whose sum is σ = 5321700. Its totient is φ = 5281744.

The previous prime is 5301697. The next prime is 5301727. The reversal of 5301721 is 1271035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1271035 = 5 ⋅254207.

It can be written as a sum of positive squares in 2 ways, for example, as 1345600 + 3956121 = 1160^2 + 1989^2 .

It is a cyclic number.

It is not a de Polignac number, because 5301721 - 2⁵ = 5301689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5301727) 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, 9586 + ... + 10123.

It is an arithmetic number, because the mean of its divisors is an integer number (1330425).

Almost surely, 2^5301721 is an apocalyptic number.

It is an amenable number.

5301721 is a deficient number, since it is larger than the sum of its proper divisors (19979).

5301721 is a wasteful number, since it uses less digits than its factorization.

5301721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19978.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 5301721 is about 2302.5466336211. The cubic root of 5301721 is about 174.3702096978.

Adding to 5301721 its reverse (1271035), we get a palindrome (6572756).

The spelling of 5301721 in words is "five million, three hundred one thousand, seven hundred twenty-one".