8997158 has 8 divisors (see below), whose sum is σ = 13556928. Its totient is φ = 4478184.

The previous prime is 8997139. The next prime is 8997167. The reversal of 8997158 is 8517998.

It is a happy number.

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

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, 9641 + ... + 10532.

It is an arithmetic number, because the mean of its divisors is an integer number (1694616).

Almost surely, 2^8997158 is an apocalyptic number.

8997158 is a deficient number, since it is larger than the sum of its proper divisors (4559770).

8997158 is a wasteful number, since it uses less digits than its factorization.

8997158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20398.

The product of its digits is 181440, while the sum is 47.

The square root of 8997158 is about 2999.5262959341. The cubic root of 8997158 is about 207.9864851919.

The spelling of 8997158 in words is "eight million, nine hundred ninety-seven thousand, one hundred fifty-eight".