4609939 has 4 divisors (see below), whose sum is σ = 4620880. Its totient is φ = 4599000.

The previous prime is 4609921. The next prime is 4609949. The reversal of 4609939 is 9399064.

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

It is a cyclic number.

It is not a de Polignac number, because 4609939 - 2⁹ = 4609427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4609909) 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, 4812 + ... + 5689.

It is an arithmetic number, because the mean of its divisors is an integer number (1155220).

Almost surely, 2^4609939 is an apocalyptic number.

4609939 is a deficient number, since it is larger than the sum of its proper divisors (10941).

4609939 is a wasteful number, since it uses less digits than its factorization.

4609939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10940.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 4609939 is about 2147.0768500452. The cubic root of 4609939 is about 166.4300433265.

The spelling of 4609939 in words is "four million, six hundred nine thousand, nine hundred thirty-nine".