8609913 has 12 divisors (see below), whose sum is σ = 13393380. Its totient is φ = 5298336.

The previous prime is 8609911. The next prime is 8609917. The reversal of 8609913 is 3199068.

8609913 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4149369 + 4460544 = 2037^2 + 2112^2 .

It is not a de Polignac number, because 8609913 - 2¹ = 8609911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8609911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36678 + ... + 36911.

It is an arithmetic number, because the mean of its divisors is an integer number (1116115).

Almost surely, 2^8609913 is an apocalyptic number.

It is an amenable number.

8609913 is a deficient number, since it is larger than the sum of its proper divisors (4783467).

8609913 is a wasteful number, since it uses less digits than its factorization.

8609913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73608 (or 73605 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 8609913 is about 2934.2653254265. The cubic root of 8609913 is about 204.9586511885.

The spelling of 8609913 in words is "eight million, six hundred nine thousand, nine hundred thirteen".