5722921 has 4 divisors (see below), whose sum is σ = 5727744. Its totient is φ = 5718100.

The previous prime is 5722909. The next prime is 5722943. The reversal of 5722921 is 1292275.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5722921 - 2⁷ = 5722793 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 5722921.

It is not an unprimeable number, because it can be changed into a prime (5722991) 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, 756 + ... + 3466.

It is an arithmetic number, because the mean of its divisors is an integer number (1431936).

Almost surely, 2^5722921 is an apocalyptic number.

It is an amenable number.

5722921 is a deficient number, since it is larger than the sum of its proper divisors (4823).

5722921 is a wasteful number, since it uses less digits than its factorization.

5722921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822.

The product of its digits is 2520, while the sum is 28.

The square root of 5722921 is about 2392.2627364067. The cubic root of 5722921 is about 178.8707180054.

The spelling of 5722921 in words is "five million, seven hundred twenty-two thousand, nine hundred twenty-one".