873291361 has 2 divisors, whose sum is σ = 873291362. Its totient is φ = 873291360.

The previous prime is 873291329. The next prime is 873291383. The reversal of 873291361 is 163192378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 848848225 + 24443136 = 29135^2 + 4944^2 .

It is a cyclic number.

It is not a de Polignac number, because 873291361 - 2⁵ = 873291329 is a prime.

It is not a weakly prime, because it can be changed into another prime (873292361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436645680 + 436645681.

It is an arithmetic number, because the mean of its divisors is an integer number (436645681).

Almost surely, 2^873291361 is an apocalyptic number.

It is an amenable number.

873291361 is a deficient number, since it is larger than the sum of its proper divisors (1).

873291361 is an equidigital number, since it uses as much as digits as its factorization.

873291361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 873291361 is about 29551.5035319694. The cubic root of 873291361 is about 955.8426125977.

The spelling of 873291361 in words is "eight hundred seventy-three million, two hundred ninety-one thousand, three hundred sixty-one".