8604707861 has 2 divisors, whose sum is σ = 8604707862. Its totient is φ = 8604707860.

The previous prime is 8604707849. The next prime is 8604707869. The reversal of 8604707861 is 1687074068.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8515782961 + 88924900 = 92281^2 + 9430^2 .

It is a cyclic number.

It is not a de Polignac number, because 8604707861 - 2¹⁰ = 8604706837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8604707869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4302353930 + 4302353931.

It is an arithmetic number, because the mean of its divisors is an integer number (4302353931).

Almost surely, 2^8604707861 is an apocalyptic number.

It is an amenable number.

8604707861 is a deficient number, since it is larger than the sum of its proper divisors (1).

8604707861 is an equidigital number, since it uses as much as digits as its factorization.

8604707861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 8604707861 is about 92761.5645674436. The cubic root of 8604707861 is about 2049.1734015058.

The spelling of 8604707861 in words is "eight billion, six hundred four million, seven hundred seven thousand, eight hundred sixty-one".