9872167 has 4 divisors (see below), whose sum is σ = 10190656. Its totient is φ = 9553680.

The previous prime is 9872131. The next prime is 9872171. The reversal of 9872167 is 7612789.

9872167 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 not a de Polignac number, because 9872167 - 2¹⁹ = 9347879 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9872117) 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, 159198 + ... + 159259.

It is an arithmetic number, because the mean of its divisors is an integer number (2547664).

Almost surely, 2^9872167 is an apocalyptic number.

9872167 is a deficient number, since it is larger than the sum of its proper divisors (318489).

9872167 is a wasteful number, since it uses less digits than its factorization.

9872167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318488.

The product of its digits is 42336, while the sum is 40.

The square root of 9872167 is about 3142.0004774029. Note that the first 3 decimals coincide. The cubic root of 9872167 is about 214.5215030162.

The spelling of 9872167 in words is "nine million, eight hundred seventy-two thousand, one hundred sixty-seven".