8489694061 has 2 divisors, whose sum is σ = 8489694062. Its totient is φ = 8489694060.

The previous prime is 8489694041. The next prime is 8489694089. The reversal of 8489694061 is 1604969848.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7862191561 + 627502500 = 88669^2 + 25050^2 .

It is a cyclic number.

It is not a de Polignac number, because 8489694061 - 2⁵ = 8489694029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8489693993 and 8489694011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8489694041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4244847030 + 4244847031.

It is an arithmetic number, because the mean of its divisors is an integer number (4244847031).

Almost surely, 2^8489694061 is an apocalyptic number.

It is an amenable number.

8489694061 is a deficient number, since it is larger than the sum of its proper divisors (1).

8489694061 is an equidigital number, since it uses as much as digits as its factorization.

8489694061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 8489694061 is about 92139.5358193213. The cubic root of 8489694061 is about 2040.0024078051.

The spelling of 8489694061 in words is "eight billion, four hundred eighty-nine million, six hundred ninety-four thousand, sixty-one".