8993172 has 12 divisors (see below), whose sum is σ = 20984096. Its totient is φ = 2997720.

The previous prime is 8993167. The next prime is 8993191. The reversal of 8993172 is 2713998.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 8993172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374704 + ... + 374727.

Almost surely, 2^8993172 is an apocalyptic number.

It is an amenable number.

8993172 is an abundant number, since it is smaller than the sum of its proper divisors (11990924).

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

8993172 is a wasteful number, since it uses less digits than its factorization.

8993172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749438 (or 749436 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 8993172 is about 2998.8617840774. The cubic root of 8993172 is about 207.9557659882.

The spelling of 8993172 in words is "eight million, nine hundred ninety-three thousand, one hundred seventy-two".