8613965 has 4 divisors (see below), whose sum is σ = 10336764. Its totient is φ = 6891168.

The previous prime is 8613961. The next prime is 8613967. The reversal of 8613965 is 5693168.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1885129 + 6728836 = 1373^2 + 2594^2 .

It is a cyclic number.

It is not a de Polignac number, because 8613965 - 2² = 8613961 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 (8613961) 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, 861392 + ... + 861401.

It is an arithmetic number, because the mean of its divisors is an integer number (2584191).

Almost surely, 2^8613965 is an apocalyptic number.

It is an amenable number.

8613965 is a deficient number, since it is larger than the sum of its proper divisors (1722799).

8613965 is a wasteful number, since it uses less digits than its factorization.

8613965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722798.

The product of its digits is 38880, while the sum is 38.

The square root of 8613965 is about 2934.9557066504. The cubic root of 8613965 is about 204.9907987145.

The spelling of 8613965 in words is "eight million, six hundred thirteen thousand, nine hundred sixty-five".