873466661 has 2 divisors, whose sum is σ = 873466662. Its totient is φ = 873466660.

The previous prime is 873466619. The next prime is 873466669. The reversal of 873466661 is 166664378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619064161 + 254402500 = 24881^2 + 15950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-873466661 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (873466669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436733330 + 436733331.

It is an arithmetic number, because the mean of its divisors is an integer number (436733331).

Almost surely, 2^873466661 is an apocalyptic number.

It is an amenable number.

873466661 is a deficient number, since it is larger than the sum of its proper divisors (1).

873466661 is an equidigital number, since it uses as much as digits as its factorization.

873466661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The square root of 873466661 is about 29554.4693912782. The cubic root of 873466661 is about 955.9065652894.

The spelling of 873466661 in words is "eight hundred seventy-three million, four hundred sixty-six thousand, six hundred sixty-one".