8920589173 has 2 divisors, whose sum is σ = 8920589174. Its totient is φ = 8920589172.

The previous prime is 8920589147. The next prime is 8920589179. The reversal of 8920589173 is 3719850298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8144521009 + 776068164 = 90247^2 + 27858^2 .

It is a cyclic number.

It is not a de Polignac number, because 8920589173 - 2⁹ = 8920588661 is a prime.

It is a super-2 number, since 2×8920589173² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8920589173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8920589179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4460294586 + 4460294587.

It is an arithmetic number, because the mean of its divisors is an integer number (4460294587).

Almost surely, 2^8920589173 is an apocalyptic number.

It is an amenable number.

8920589173 is a deficient number, since it is larger than the sum of its proper divisors (1).

8920589173 is an equidigital number, since it uses as much as digits as its factorization.

8920589173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 8920589173 is about 94448.8706814433. The cubic root of 8920589173 is about 2073.9479195919.

The spelling of 8920589173 in words is "eight billion, nine hundred twenty million, five hundred eighty-nine thousand, one hundred seventy-three".