5920721 has 12 divisors (see below), whose sum is σ = 6279732. Its totient is φ = 5580000.

The previous prime is 5920711. The next prime is 5920741. The reversal of 5920721 is 1270295.

It can be written as a sum of positive squares in 2 ways, for example, as 2907025 + 3013696 = 1705^2 + 1736^2 .

It is not a de Polignac number, because 5920721 - 2⁶ = 5920657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5920711) 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 11 ways as a sum of consecutive naturals, for example, 58571 + ... + 58671.

It is an arithmetic number, because the mean of its divisors is an integer number (523311).

Almost surely, 2^5920721 is an apocalyptic number.

It is an amenable number.

5920721 is a deficient number, since it is larger than the sum of its proper divisors (359011).

5920721 is a wasteful number, since it uses less digits than its factorization.

5920721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 5920721 is about 2433.2531721956. The cubic root of 5920721 is about 180.9081776355.

The spelling of 5920721 in words is "five million, nine hundred twenty thousand, seven hundred twenty-one".