4608649 has 4 divisors (see below), whose sum is σ = 4879764. Its totient is φ = 4337536.

The previous prime is 4608631. The next prime is 4608661. The reversal of 4608649 is 9468064.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2866249 + 1742400 = 1693^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 4608649 - 2⁷ = 4608521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4608619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135532 + ... + 135565.

It is an arithmetic number, because the mean of its divisors is an integer number (1219941).

Almost surely, 2^4608649 is an apocalyptic number.

It is an amenable number.

4608649 is a deficient number, since it is larger than the sum of its proper divisors (271115).

4608649 is a wasteful number, since it uses less digits than its factorization.

4608649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271114.

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

The square root of 4608649 is about 2146.7764205897. The cubic root of 4608649 is about 166.4145178293.

The spelling of 4608649 in words is "four million, six hundred eight thousand, six hundred forty-nine".