8604649 has 2 divisors, whose sum is σ = 8604650. Its totient is φ = 8604648.

The previous prime is 8604647. The next prime is 8604667. The reversal of 8604649 is 9464068.

8604649 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., 8294400 + 310249 = 2880^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 8604649 - 2¹ = 8604647 is a prime.

Together with 8604647, it forms a pair of twin primes.

8604649 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8604641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4302324 + 4302325.

It is an arithmetic number, because the mean of its divisors is an integer number (4302325).

Almost surely, 2^8604649 is an apocalyptic number.

It is an amenable number.

8604649 is a deficient number, since it is larger than the sum of its proper divisors (1).

8604649 is an equidigital number, since it uses as much as digits as its factorization.

8604649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 8604649 is about 2933.3682005504. The cubic root of 8604649 is about 204.9168728999.

The spelling of 8604649 in words is "eight million, six hundred four thousand, six hundred forty-nine".