4547939 has 6 divisors (see below), whose sum is σ = 4969116. Its totient is φ = 4128060.

The previous prime is 4547923. The next prime is 4547947. The reversal of 4547939 is 9397454.

It is not a de Polignac number, because 4547939 - 2⁴ = 4547923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4547896 and 4547905.

It is not an unprimeable number, because it can be changed into a prime (4547909) 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 5 ways as a sum of consecutive naturals, for example, 6752 + ... + 7394.

It is an arithmetic number, because the mean of its divisors is an integer number (828186).

Almost surely, 2^4547939 is an apocalyptic number.

4547939 is a deficient number, since it is larger than the sum of its proper divisors (421177).

4547939 is an frugal number, since it uses more digits than its factorization.

4547939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297 (or 654 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 4547939 is about 2132.5897401985. The cubic root of 4547939 is about 165.6805561341.

The spelling of 4547939 in words is "four million, five hundred forty-seven thousand, nine hundred thirty-nine".