872094761 has 2 divisors, whose sum is σ = 872094762. Its totient is φ = 872094760.

The previous prime is 872094733. The next prime is 872094787. The reversal of 872094761 is 167490278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 775956736 + 96138025 = 27856^2 + 9805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-872094761 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (872094791) 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, 436047380 + 436047381.

It is an arithmetic number, because the mean of its divisors is an integer number (436047381).

Almost surely, 2^872094761 is an apocalyptic number.

It is an amenable number.

872094761 is a deficient number, since it is larger than the sum of its proper divisors (1).

872094761 is an equidigital number, since it uses as much as digits as its factorization.

872094761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 872094761 is about 29531.2505830688. The cubic root of 872094761 is about 955.4058419618.

The spelling of 872094761 in words is "eight hundred seventy-two million, ninety-four thousand, seven hundred sixty-one".