5456861 has 2 divisors, whose sum is σ = 5456862. Its totient is φ = 5456860.

The previous prime is 5456839. The next prime is 5456863. The reversal of 5456861 is 1686545.

It is a happy number.

5456861 is nontrivially palindromic in base 11.

5456861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4923961 + 532900 = 2219^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 5456861 - 2¹⁰ = 5455837 is a prime.

It is a Sophie Germain prime.

Together with 5456863, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5456863) 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 as a sum of consecutive naturals, namely, 2728430 + 2728431.

It is an arithmetic number, because the mean of its divisors is an integer number (2728431).

Almost surely, 2^5456861 is an apocalyptic number.

It is an amenable number.

5456861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5456861 is an equidigital number, since it uses as much as digits as its factorization.

5456861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 35.

The square root of 5456861 is about 2335.9925085496. The cubic root of 5456861 is about 176.0547027791.

Adding to 5456861 its sum of digits (35), we get a square (5456896 = 2336²).

The spelling of 5456861 in words is "five million, four hundred fifty-six thousand, eight hundred sixty-one".