534243397 has 2 divisors, whose sum is σ = 534243398. Its totient is φ = 534243396.

The previous prime is 534243341. The next prime is 534243427. The reversal of 534243397 is 793342435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 507555841 + 26687556 = 22529^2 + 5166^2 .

It is a cyclic number.

It is not a de Polignac number, because 534243397 - 2¹¹ = 534241349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534243317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267121698 + 267121699.

It is an arithmetic number, because the mean of its divisors is an integer number (267121699).

Almost surely, 2^534243397 is an apocalyptic number.

It is an amenable number.

534243397 is a deficient number, since it is larger than the sum of its proper divisors (1).

534243397 is an equidigital number, since it uses as much as digits as its factorization.

534243397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 40.

The square root of 534243397 is about 23113.7058257649. The cubic root of 534243397 is about 811.4212698823.

The spelling of 534243397 in words is "five hundred thirty-four million, two hundred forty-three thousand, three hundred ninety-seven".