8973173669 has 2 divisors, whose sum is σ = 8973173670. Its totient is φ = 8973173668.

The previous prime is 8973173663. The next prime is 8973173689. The reversal of 8973173669 is 9663713798.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8093161444 + 880012225 = 89962^2 + 29665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8973173669 is a prime.

It is a super-2 number, since 2×8973173669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8973173663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4486586834 + 4486586835.

It is an arithmetic number, because the mean of its divisors is an integer number (4486586835).

Almost surely, 2^8973173669 is an apocalyptic number.

It is an amenable number.

8973173669 is a deficient number, since it is larger than the sum of its proper divisors (1).

8973173669 is an equidigital number, since it uses as much as digits as its factorization.

8973173669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10287648, while the sum is 59.

The square root of 8973173669 is about 94726.8371107154. The cubic root of 8973173669 is about 2078.0150618952.

The spelling of 8973173669 in words is "eight billion, nine hundred seventy-three million, one hundred seventy-three thousand, six hundred sixty-nine".