5395721 has 2 divisors, whose sum is σ = 5395722. Its totient is φ = 5395720.

The previous prime is 5395717. The next prime is 5395729. The reversal of 5395721 is 1275935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3024121 + 2371600 = 1739^2 + 1540^2 .

It is a cyclic number.

It is not a de Polignac number, because 5395721 - 2² = 5395717 is a prime.

It is a super-2 number, since 2×5395721² = 58227610219682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5395729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2697860 + 2697861.

It is an arithmetic number, because the mean of its divisors is an integer number (2697861).

Almost surely, 2^5395721 is an apocalyptic number.

It is an amenable number.

5395721 is a deficient number, since it is larger than the sum of its proper divisors (1).

5395721 is an equidigital number, since it uses as much as digits as its factorization.

5395721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 32.

The square root of 5395721 is about 2322.8691310532. The cubic root of 5395721 is about 175.3947117810.

It can be divided in two parts, 5395 and 721, that added together give a palindrome (6116).

The spelling of 5395721 in words is "five million, three hundred ninety-five thousand, seven hundred twenty-one".