868493273 has 2 divisors, whose sum is σ = 868493274. Its totient is φ = 868493272.

The previous prime is 868493251. The next prime is 868493293. The reversal of 868493273 is 372394868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 861246409 + 7246864 = 29347^2 + 2692^2 .

It is a cyclic number.

It is not a de Polignac number, because 868493273 - 2⁶ = 868493209 is a prime.

It is not a weakly prime, because it can be changed into another prime (868493203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434246636 + 434246637.

It is an arithmetic number, because the mean of its divisors is an integer number (434246637).

Almost surely, 2^868493273 is an apocalyptic number.

It is an amenable number.

868493273 is a deficient number, since it is larger than the sum of its proper divisors (1).

868493273 is an equidigital number, since it uses as much as digits as its factorization.

868493273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 50.

The square root of 868493273 is about 29470.2099246001. The cubic root of 868493273 is about 954.0888481639.

The spelling of 868493273 in words is "eight hundred sixty-eight million, four hundred ninety-three thousand, two hundred seventy-three".