4645939 has 8 divisors (see below), whose sum is σ = 4863872. Its totient is φ = 4432320.

The previous prime is 4645933. The next prime is 4645951. The reversal of 4645939 is 9395464.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4645939 is a prime.

It is a Duffinian number.

4645939 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645933) 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 7 ways as a sum of consecutive naturals, for example, 1237 + ... + 3289.

It is an arithmetic number, because the mean of its divisors is an integer number (607984).

Almost surely, 2^4645939 is an apocalyptic number.

4645939 is a deficient number, since it is larger than the sum of its proper divisors (217933).

4645939 is a wasteful number, since it uses less digits than its factorization.

4645939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157.

The product of its digits is 116640, while the sum is 40.

The square root of 4645939 is about 2155.4440377797. Note that the first 3 decimals coincide. The cubic root of 4645939 is about 166.8621497397.

The spelling of 4645939 in words is "four million, six hundred forty-five thousand, nine hundred thirty-nine".