8672191 has 6 divisors (see below), whose sum is σ = 9532376. Its totient is φ = 7883700.

The previous prime is 8672177. The next prime is 8672201. The reversal of 8672191 is 1912768.

It is a happy number.

8672191 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8672191 - 2⁷ = 8672063 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8672101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35715 + ... + 35956.

Almost surely, 2^8672191 is an apocalyptic number.

8672191 is a deficient number, since it is larger than the sum of its proper divisors (860185).

8672191 is a wasteful number, since it uses less digits than its factorization.

8672191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71693 (or 71682 counting only the distinct ones).

The product of its digits is 6048, while the sum is 34.

The square root of 8672191 is about 2944.8584006706. The cubic root of 8672191 is about 205.4516395892.

The spelling of 8672191 in words is "eight million, six hundred seventy-two thousand, one hundred ninety-one".