5086721 has 4 divisors (see below), whose sum is σ = 5098500. Its totient is φ = 5074944.

The previous prime is 5086717. The next prime is 5086751. The reversal of 5086721 is 1276805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1276805 = 5 ⋅255361.

It can be written as a sum of positive squares in 2 ways, for example, as 2446096 + 2640625 = 1564^2 + 1625^2 .

It is a cyclic number.

It is not a de Polignac number, because 5086721 - 2² = 5086717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5086751) 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, 5216 + ... + 6113.

It is an arithmetic number, because the mean of its divisors is an integer number (1274625).

Almost surely, 2^5086721 is an apocalyptic number.

It is an amenable number.

5086721 is a deficient number, since it is larger than the sum of its proper divisors (11779).

5086721 is a wasteful number, since it uses less digits than its factorization.

5086721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11778.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 5086721 is about 2255.3760218642. The cubic root of 5086721 is about 171.9805390818.

The spelling of 5086721 in words is "five million, eighty-six thousand, seven hundred twenty-one".