5406881 has 2 divisors, whose sum is σ = 5406882. Its totient is φ = 5406880.

The previous prime is 5406859. The next prime is 5406889. The reversal of 5406881 is 1886045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4752400 + 654481 = 2180^2 + 809^2 .

It is a cyclic number.

It is not a de Polignac number, because 5406881 - 2¹⁰ = 5405857 is a prime.

It is a super-2 number, since 2×5406881² = 58468724296322, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5406889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2703440 + 2703441.

It is an arithmetic number, because the mean of its divisors is an integer number (2703441).

Almost surely, 2^5406881 is an apocalyptic number.

It is an amenable number.

5406881 is a deficient number, since it is larger than the sum of its proper divisors (1).

5406881 is an equidigital number, since it uses as much as digits as its factorization.

5406881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 5406881 is about 2325.2700918388. The cubic root of 5406881 is about 175.5155517965.

The spelling of 5406881 in words is "five million, four hundred six thousand, eight hundred eighty-one".