9173420100 has 432 divisors, whose sum is σ = 32644160640. Its totient is φ = 2220825600.

The previous prime is 9173420089. The next prime is 9173420107. The reversal of 9173420100 is 10243719.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (9173420107) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 22428696 + ... + 22429104.

Almost surely, 2^9173420100 is an apocalyptic number.

9173420100 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9173420100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16322080320).

9173420100 is an abundant number, since it is smaller than the sum of its proper divisors (23470740540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9173420100 is a wasteful number, since it uses less digits than its factorization.

9173420100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 9173420100 is about 95777.9729374140. The cubic root of 9173420100 is about 2093.3592262767.

Adding to 9173420100 its reverse (10243719), we get a palindrome (9183663819).

The spelling of 9173420100 in words is "nine billion, one hundred seventy-three million, four hundred twenty thousand, one hundred".