8173993 has 8 divisors (see below), whose sum is σ = 8566848. Its totient is φ = 7784304.

The previous prime is 8173951. The next prime is 8174011. The reversal of 8173993 is 3993718.

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

It is not a de Polignac number, because 8173993 - 2²¹ = 6076841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8173903) 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, 5730 + ... + 7012.

It is an arithmetic number, because the mean of its divisors is an integer number (1070856).

Almost surely, 2^8173993 is an apocalyptic number.

It is an amenable number.

8173993 is a deficient number, since it is larger than the sum of its proper divisors (392855).

8173993 is a wasteful number, since it uses less digits than its factorization.

8173993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583.

The product of its digits is 40824, while the sum is 40.

The square root of 8173993 is about 2859.0195872012. The cubic root of 8173993 is about 201.4395552105.

The spelling of 8173993 in words is "eight million, one hundred seventy-three thousand, nine hundred ninety-three".