8158973 has 4 divisors (see below), whose sum is σ = 8166048. Its totient is φ = 8151900.

The previous prime is 8158967. The next prime is 8158987. The reversal of 8158973 is 3798518.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8158973 - 2¹⁰ = 8157949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 8158973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8158373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361 + ... + 4262.

It is an arithmetic number, because the mean of its divisors is an integer number (2041512).

Almost surely, 2^8158973 is an apocalyptic number.

It is an amenable number.

8158973 is a deficient number, since it is larger than the sum of its proper divisors (7075).

8158973 is a wasteful number, since it uses less digits than its factorization.

8158973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074.

The product of its digits is 60480, while the sum is 41.

The square root of 8158973 is about 2856.3916048049. The cubic root of 8158973 is about 201.3160954668.

The spelling of 8158973 in words is "eight million, one hundred fifty-eight thousand, nine hundred seventy-three".