8993671 has 4 divisors (see below), whose sum is σ = 9077832. Its totient is φ = 8909512.

The previous prime is 8993609. The next prime is 8993681. The reversal of 8993671 is 1763998.

8993671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8993671 is a prime.

It is a super-2 number, since 2×8993671² = 161772236112482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8993681) 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, 41920 + ... + 42133.

It is an arithmetic number, because the mean of its divisors is an integer number (2269458).

Almost surely, 2^8993671 is an apocalyptic number.

8993671 is a deficient number, since it is larger than the sum of its proper divisors (84161).

8993671 is a wasteful number, since it uses less digits than its factorization.

8993671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84160.

The product of its digits is 81648, while the sum is 43.

The square root of 8993671 is about 2998.9449811559. The cubic root of 8993671 is about 207.9596121657.

The spelling of 8993671 in words is "eight million, nine hundred ninety-three thousand, six hundred seventy-one".