8671997 has 4 divisors (see below), whose sum is σ = 8819040. Its totient is φ = 8524956.

The previous prime is 8671991. The next prime is 8672003. The reversal of 8671997 is 7991768.

8671997 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (8671991) and next prime (8672003).

It is a cyclic number.

It is not a de Polignac number, because 8671997 - 2⁴ = 8671981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8671991) 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, 73433 + ... + 73550.

It is an arithmetic number, because the mean of its divisors is an integer number (2204760).

Almost surely, 2^8671997 is an apocalyptic number.

It is an amenable number.

8671997 is a deficient number, since it is larger than the sum of its proper divisors (147043).

8671997 is a wasteful number, since it uses less digits than its factorization.

8671997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147042.

The product of its digits is 190512, while the sum is 47.

The square root of 8671997 is about 2944.8254617209. The cubic root of 8671997 is about 205.4501075690.

The spelling of 8671997 in words is "eight million, six hundred seventy-one thousand, nine hundred ninety-seven".