873170261 has 2 divisors, whose sum is σ = 873170262. Its totient is φ = 873170260.

The previous prime is 873170237. The next prime is 873170279. The reversal of 873170261 is 162071378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 819734161 + 53436100 = 28631^2 + 7310^2 .

It is a cyclic number.

It is not a de Polignac number, because 873170261 - 2¹⁰ = 873169237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (873170281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436585130 + 436585131.

It is an arithmetic number, because the mean of its divisors is an integer number (436585131).

Almost surely, 2^873170261 is an apocalyptic number.

It is an amenable number.

873170261 is a deficient number, since it is larger than the sum of its proper divisors (1).

873170261 is an equidigital number, since it uses as much as digits as its factorization.

873170261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 873170261 is about 29549.4544958109. The cubic root of 873170261 is about 955.7984280729.

The spelling of 873170261 in words is "eight hundred seventy-three million, one hundred seventy thousand, two hundred sixty-one".