5317721 has 4 divisors (see below), whose sum is σ = 5430912. Its totient is φ = 5204532.

The previous prime is 5317703. The next prime is 5317733. The reversal of 5317721 is 1277135.

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 not a de Polignac number, because 5317721 - 2¹⁰ = 5316697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5307721) 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, 56525 + ... + 56618.

It is an arithmetic number, because the mean of its divisors is an integer number (1357728).

Almost surely, 2^5317721 is an apocalyptic number.

It is an amenable number.

5317721 is a deficient number, since it is larger than the sum of its proper divisors (113191).

5317721 is a wasteful number, since it uses less digits than its factorization.

5317721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113190.

The product of its digits is 1470, while the sum is 26.

The square root of 5317721 is about 2306.0184301085. The cubic root of 5317721 is about 174.5454434564.

The spelling of 5317721 in words is "five million, three hundred seventeen thousand, seven hundred twenty-one".