5367781 has 2 divisors, whose sum is σ = 5367782. Its totient is φ = 5367780.

The previous prime is 5367779. The next prime is 5367821. The reversal of 5367781 is 1877635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5313025 + 54756 = 2305^2 + 234^2 .

It is a cyclic number.

It is not a de Polignac number, because 5367781 - 2¹ = 5367779 is a prime.

It is a super-2 number, since 2×5367781² = 57626145727922, which contains 22 as substring.

Together with 5367779, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5367781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5367721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2683890 + 2683891.

It is an arithmetic number, because the mean of its divisors is an integer number (2683891).

Almost surely, 2^5367781 is an apocalyptic number.

It is an amenable number.

5367781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5367781 is an equidigital number, since it uses as much as digits as its factorization.

5367781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 37.

The square root of 5367781 is about 2316.8472111902. The cubic root of 5367781 is about 175.0914460842.

The spelling of 5367781 in words is "five million, three hundred sixty-seven thousand, seven hundred eighty-one".