8867609 has 2 divisors, whose sum is σ = 8867610. Its totient is φ = 8867608.

The previous prime is 8867597. The next prime is 8867633. The reversal of 8867609 is 9067688.

8867609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5161984 + 3705625 = 2272^2 + 1925^2 .

It is a cyclic number.

It is not a de Polignac number, because 8867609 - 2¹² = 8863513 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8867609.

It is not a weakly prime, because it can be changed into another prime (8867669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4433804 + 4433805.

It is an arithmetic number, because the mean of its divisors is an integer number (4433805).

Almost surely, 2^8867609 is an apocalyptic number.

It is an amenable number.

8867609 is a deficient number, since it is larger than the sum of its proper divisors (1).

8867609 is an equidigital number, since it uses as much as digits as its factorization.

8867609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 8867609 is about 2977.8530856978. The cubic root of 8867609 is about 206.9833977365.

The spelling of 8867609 in words is "eight million, eight hundred sixty-seven thousand, six hundred nine".