534844781 has 2 divisors, whose sum is σ = 534844782. Its totient is φ = 534844780.

The previous prime is 534844777. The next prime is 534844831. The reversal of 534844781 is 187448435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440580100 + 94264681 = 20990^2 + 9709^2 .

It is a cyclic number.

It is not a de Polignac number, because 534844781 - 2² = 534844777 is a prime.

It is a super-2 number, since 2×534844781² = 572117879525875922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534844741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267422390 + 267422391.

It is an arithmetic number, because the mean of its divisors is an integer number (267422391).

Almost surely, 2^534844781 is an apocalyptic number.

It is an amenable number.

534844781 is a deficient number, since it is larger than the sum of its proper divisors (1).

534844781 is an equidigital number, since it uses as much as digits as its factorization.

534844781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 430080, while the sum is 44.

The square root of 534844781 is about 23126.7114177524. The cubic root of 534844781 is about 811.7256210361.

The spelling of 534844781 in words is "five hundred thirty-four million, eight hundred forty-four thousand, seven hundred eighty-one".