8641913 has 8 divisors (see below), whose sum is σ = 10217280. Its totient is φ = 7151760.

The previous prime is 8641909. The next prime is 8641949. The reversal of 8641913 is 3191468.

It is a happy number.

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

It is not a de Polignac number, because 8641913 - 2² = 8641909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8641913.

It is not an unprimeable number, because it can be changed into a prime (8641513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21083 + ... + 21488.

It is an arithmetic number, because the mean of its divisors is an integer number (1277160).

Almost surely, 2^8641913 is an apocalyptic number.

It is an amenable number.

8641913 is a deficient number, since it is larger than the sum of its proper divisors (1575367).

8641913 is a wasteful number, since it uses less digits than its factorization.

8641913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42607.

The product of its digits is 5184, while the sum is 32.

The square root of 8641913 is about 2939.7130812377. The cubic root of 8641913 is about 205.2122568539.

The spelling of 8641913 in words is "eight million, six hundred forty-one thousand, nine hundred thirteen".