4384649 has 4 divisors (see below), whose sum is σ = 4615440. Its totient is φ = 4153860.

The previous prime is 4384631. The next prime is 4384673. The reversal of 4384649 is 9464834.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9464834 = 2 ⋅4732417.

It is a cyclic number.

It is not a de Polignac number, because 4384649 - 2¹² = 4380553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4386649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115367 + ... + 115404.

It is an arithmetic number, because the mean of its divisors is an integer number (1153860).

Almost surely, 2^4384649 is an apocalyptic number.

It is an amenable number.

4384649 is a deficient number, since it is larger than the sum of its proper divisors (230791).

4384649 is a wasteful number, since it uses less digits than its factorization.

4384649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230790.

The product of its digits is 82944, while the sum is 38.

The square root of 4384649 is about 2093.9553481390. The cubic root of 4384649 is about 163.6734653900.

The spelling of 4384649 in words is "four million, three hundred eighty-four thousand, six hundred forty-nine".