5411781 has 6 divisors (see below), whose sum is σ = 7817030. Its totient is φ = 3607848.

The previous prime is 5411771. The next prime is 5411801. The reversal of 5411781 is 1871145.

It can be written as a sum of positive squares in only one way, i.e., 5062500 + 349281 = 2250^2 + 591^2 .

It is not a de Polignac number, because 5411781 - 2⁶ = 5411717 is a prime.

It is a super-2 number, since 2×5411781² = 58574747183922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5411761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300646 + ... + 300663.

Almost surely, 2^5411781 is an apocalyptic number.

It is an amenable number.

5411781 is a deficient number, since it is larger than the sum of its proper divisors (2405249).

5411781 is a wasteful number, since it uses less digits than its factorization.

5411781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601315 (or 601312 counting only the distinct ones).

The product of its digits is 1120, while the sum is 27.

The square root of 5411781 is about 2326.3234942716. The cubic root of 5411781 is about 175.5685562633.

The spelling of 5411781 in words is "five million, four hundred eleven thousand, seven hundred eighty-one".