863726273 has 2 divisors, whose sum is σ = 863726274. Its totient is φ = 863726272.

The previous prime is 863726239. The next prime is 863726287. The reversal of 863726273 is 372627368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543029809 + 320696464 = 23303^2 + 17908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-863726273 is a prime.

It is not a weakly prime, because it can be changed into another prime (863728273) 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, 431863136 + 431863137.

It is an arithmetic number, because the mean of its divisors is an integer number (431863137).

Almost surely, 2^863726273 is an apocalyptic number.

It is an amenable number.

863726273 is a deficient number, since it is larger than the sum of its proper divisors (1).

863726273 is an equidigital number, since it uses as much as digits as its factorization.

863726273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 44.

The square root of 863726273 is about 29389.2203537283. The cubic root of 863726273 is about 952.3400384905.

The spelling of 863726273 in words is "eight hundred sixty-three million, seven hundred twenty-six thousand, two hundred seventy-three".