5684921 has 4 divisors (see below), whose sum is σ = 6201744. Its totient is φ = 5168100.

The previous prime is 5684909. The next prime is 5684927. The reversal of 5684921 is 1294865.

5684921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5684921 - 2¹⁸ = 5422777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5684927) 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, 258395 + ... + 258416.

It is an arithmetic number, because the mean of its divisors is an integer number (1550436).

Almost surely, 2^5684921 is an apocalyptic number.

It is an amenable number.

5684921 is a deficient number, since it is larger than the sum of its proper divisors (516823).

5684921 is a wasteful number, since it uses less digits than its factorization.

5684921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516822.

The product of its digits is 17280, while the sum is 35.

The square root of 5684921 is about 2384.3072369139. The cubic root of 5684921 is about 178.4739400215.

The spelling of 5684921 in words is "five million, six hundred eighty-four thousand, nine hundred twenty-one".