4643947 has 16 divisors (see below), whose sum is σ = 5935104. Its totient is φ = 3528000.

The previous prime is 4643939. The next prime is 4643959. The reversal of 4643947 is 7493464.

It is not a de Polignac number, because 4643947 - 2³ = 4643939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4643987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2422 + ... + 3892.

It is an arithmetic number, because the mean of its divisors is an integer number (370944).

Almost surely, 2^4643947 is an apocalyptic number.

4643947 is a deficient number, since it is larger than the sum of its proper divisors (1291157).

4643947 is a wasteful number, since it uses less digits than its factorization.

4643947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530.

The product of its digits is 72576, while the sum is 37.

The square root of 4643947 is about 2154.9819024762. The cubic root of 4643947 is about 166.8382983059.

The spelling of 4643947 in words is "four million, six hundred forty-three thousand, nine hundred forty-seven".