5317921 has 6 divisors (see below), whose sum is σ = 6186210. Its totient is φ = 4558176.

The previous prime is 5317913. The next prime is 5317931. The reversal of 5317921 is 1297135.

It can be written as a sum of positive squares in only one way, i.e., 5239521 + 78400 = 2289^2 + 280^2 .

It is not a de Polignac number, because 5317921 - 2³ = 5317913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5317921.

It is not an unprimeable number, because it can be changed into a prime (5317901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54216 + ... + 54313.

It is an arithmetic number, because the mean of its divisors is an integer number (1031035).

Almost surely, 2^5317921 is an apocalyptic number.

It is an amenable number.

5317921 is a deficient number, since it is larger than the sum of its proper divisors (868289).

5317921 is a wasteful number, since it uses less digits than its factorization.

5317921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108543 (or 108536 counting only the distinct ones).

The product of its digits is 1890, while the sum is 28.

The square root of 5317921 is about 2306.0617944886. The cubic root of 5317921 is about 174.5476316526.

The spelling of 5317921 in words is "five million, three hundred seventeen thousand, nine hundred twenty-one".