5303721 has 4 divisors (see below), whose sum is σ = 7071632. Its totient is φ = 3535812.

The previous prime is 5303713. The next prime is 5303729. The reversal of 5303721 is 1273035.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (5303713) and next prime (5303729).

It is not a de Polignac number, because 5303721 - 2³ = 5303713 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5303729) 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, 883951 + ... + 883956.

It is an arithmetic number, because the mean of its divisors is an integer number (1767908).

Almost surely, 2^5303721 is an apocalyptic number.

It is an amenable number.

5303721 is a deficient number, since it is larger than the sum of its proper divisors (1767911).

5303721 is a wasteful number, since it uses less digits than its factorization.

5303721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767910.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 5303721 is about 2302.9808944062. The cubic root of 5303721 is about 174.3921331812.

Adding to 5303721 its reverse (1273035), we get a palindrome (6576756).

The spelling of 5303721 in words is "five million, three hundred three thousand, seven hundred twenty-one".