4643988 has 24 divisors (see below), whose sum is σ = 11101440. Its totient is φ = 1510080.

The previous prime is 4643987. The next prime is 4643993. The reversal of 4643988 is 8893464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4643983) 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, 4228 + ... + 5211.

It is an arithmetic number, because the mean of its divisors is an integer number (462560).

Almost surely, 2^4643988 is an apocalyptic number.

It is an amenable number.

4643988 is an abundant number, since it is smaller than the sum of its proper divisors (6457452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4643988 is a wasteful number, since it uses less digits than its factorization.

4643988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487 (or 9485 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 4643988 is about 2154.9914152961. The cubic root of 4643988 is about 166.8387892927.

The spelling of 4643988 in words is "four million, six hundred forty-three thousand, nine hundred eighty-eight".