8961323173 has 8 divisors (see below), whose sum is σ = 9785651616. Its totient is φ = 8138605200.

The previous prime is 8961323159. The next prime is 8961323183. The reversal of 8961323173 is 3713231698.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8961323173 - 2⁵ = 8961323141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8961323143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390963 + ... + 413248.

It is an arithmetic number, because the mean of its divisors is an integer number (1223206452).

Almost surely, 2^8961323173 is an apocalyptic number.

It is an amenable number.

8961323173 is a deficient number, since it is larger than the sum of its proper divisors (824328443).

8961323173 is a wasteful number, since it uses less digits than its factorization.

8961323173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805235.

The product of its digits is 163296, while the sum is 43.

The square root of 8961323173 is about 94664.2655546432. The cubic root of 8961323173 is about 2077.0998763033.

The spelling of 8961323173 in words is "eight billion, nine hundred sixty-one million, three hundred twenty-three thousand, one hundred seventy-three".