8973173623 has 2 divisors, whose sum is σ = 8973173624. Its totient is φ = 8973173622.

The previous prime is 8973173557. The next prime is 8973173647. The reversal of 8973173623 is 3263713798.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8973173623 - 2¹³ = 8973165431 is a prime.

It is a super-2 number, since 2×8973173623² (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, 4486586811 + 4486586812.

It is an arithmetic number, because the mean of its divisors is an integer number (4486586812).

Almost surely, 2^8973173623 is an apocalyptic number.

8973173623 is a deficient number, since it is larger than the sum of its proper divisors (1).

8973173623 is an equidigital number, since it uses as much as digits as its factorization.

8973173623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 49.

The square root of 8973173623 is about 94726.8368679119. The cubic root of 8973173623 is about 2078.0150583443.

The spelling of 8973173623 in words is "eight billion, nine hundred seventy-three million, one hundred seventy-three thousand, six hundred twenty-three".