5184721 has 2 divisors, whose sum is σ = 5184722. Its totient is φ = 5184720.

The previous prime is 5184703. The next prime is 5184727. The reversal of 5184721 is 1274815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4601025 + 583696 = 2145^2 + 764^2 .

It is a cyclic number.

It is not a de Polignac number, because 5184721 - 2⁵ = 5184689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5184721.

It is not a weakly prime, because it can be changed into another prime (5184727) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2592360 + 2592361.

It is an arithmetic number, because the mean of its divisors is an integer number (2592361).

Almost surely, 2^5184721 is an apocalyptic number.

It is an amenable number.

5184721 is a deficient number, since it is larger than the sum of its proper divisors (1).

5184721 is an equidigital number, since it uses as much as digits as its factorization.

5184721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240, while the sum is 28.

The square root of 5184721 is about 2276.9982433019. The cubic root of 5184721 is about 173.0779716910.

The spelling of 5184721 in words is "five million, one hundred eighty-four thousand, seven hundred twenty-one".