8653609 has 2 divisors, whose sum is σ = 8653610. Its totient is φ = 8653608.

The previous prime is 8653591. The next prime is 8653613. The reversal of 8653609 is 9063568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4665600 + 3988009 = 2160^2 + 1997^2 .

It is a cyclic number.

It is not a de Polignac number, because 8653609 - 2¹⁵ = 8620841 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8653669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4326804 + 4326805.

It is an arithmetic number, because the mean of its divisors is an integer number (4326805).

Almost surely, 2^8653609 is an apocalyptic number.

It is an amenable number.

8653609 is a deficient number, since it is larger than the sum of its proper divisors (1).

8653609 is an equidigital number, since it uses as much as digits as its factorization.

8653609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 8653609 is about 2941.7017183936. The cubic root of 8653609 is about 205.3047934861.

The spelling of 8653609 in words is "eight million, six hundred fifty-three thousand, six hundred nine".