8719965 has 24 divisors (see below), whose sum is σ = 15264288. Its totient is φ = 4604640.

The previous prime is 8719961. The next prime is 8719987. The reversal of 8719965 is 5699178.

It is not a de Polignac number, because 8719965 - 2² = 8719961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8719965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8719961) 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 23 ways as a sum of consecutive naturals, for example, 3910 + ... + 5720.

It is an arithmetic number, because the mean of its divisors is an integer number (636012).

Almost surely, 2^8719965 is an apocalyptic number.

It is an amenable number.

8719965 is a deficient number, since it is larger than the sum of its proper divisors (6544323).

8719965 is a wasteful number, since it uses less digits than its factorization.

8719965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929 (or 1926 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 8719965 is about 2952.9586857929. The cubic root of 8719965 is about 205.8282179318.

The spelling of 8719965 in words is "eight million, seven hundred nineteen thousand, nine hundred sixty-five".