5708921 has 4 divisors (see below), whose sum is σ = 5740644. Its totient is φ = 5677200.

The previous prime is 5708909. The next prime is 5708933. The reversal of 5708921 is 1298075.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (5708909) and next prime (5708933).

It can be written as a sum of positive squares in 2 ways, for example, as 44521 + 5664400 = 211^2 + 2380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5708921 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (5708971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15590 + ... + 15951.

It is an arithmetic number, because the mean of its divisors is an integer number (1435161).

Almost surely, 2^5708921 is an apocalyptic number.

It is an amenable number.

5708921 is a deficient number, since it is larger than the sum of its proper divisors (31723).

5708921 is a wasteful number, since it uses less digits than its factorization.

5708921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31722.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 5708921 is about 2389.3348446796. The cubic root of 5708921 is about 178.7247415693.

The spelling of 5708921 in words is "five million, seven hundred eight thousand, nine hundred twenty-one".