8671965 has 8 divisors (see below), whose sum is σ = 13875168. Its totient is φ = 4625040.

The previous prime is 8671937. The next prime is 8671967. The reversal of 8671965 is 5691768.

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

It is not a de Polignac number, because 8671965 - 2⁷ = 8671837 is a prime.

It is a super-2 number, since 2×8671965² = 150405953922450, which contains 22 as substring.

8671965 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8671967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289051 + ... + 289080.

It is an arithmetic number, because the mean of its divisors is an integer number (1734396).

Almost surely, 2^8671965 is an apocalyptic number.

It is an amenable number.

8671965 is a deficient number, since it is larger than the sum of its proper divisors (5203203).

8671965 is a wasteful number, since it uses less digits than its factorization.

8671965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578139.

The product of its digits is 90720, while the sum is 42.

The square root of 8671965 is about 2944.8200284567. The cubic root of 8671965 is about 205.4498548625.

The spelling of 8671965 in words is "eight million, six hundred seventy-one thousand, nine hundred sixty-five".