5915721 has 16 divisors (see below), whose sum is σ = 9200000. Its totient is φ = 3379824.

The previous prime is 5915717. The next prime is 5915731. The reversal of 5915721 is 1275195.

It is not a de Polignac number, because 5915721 - 2² = 5915717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5915731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1846 + ... + 3903.

It is an arithmetic number, because the mean of its divisors is an integer number (575000).

Almost surely, 2^5915721 is an apocalyptic number.

It is an amenable number.

5915721 is a deficient number, since it is larger than the sum of its proper divisors (3284279).

5915721 is an equidigital number, since it uses as much as digits as its factorization.

5915721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5773 (or 5759 counting only the distinct ones).

The product of its digits is 3150, while the sum is 30.

The square root of 5915721 is about 2432.2255240828. The cubic root of 5915721 is about 180.8572381394.

The spelling of 5915721 in words is "five million, nine hundred fifteen thousand, seven hundred twenty-one".