4921988 has 12 divisors (see below), whose sum is σ = 9066960. Its totient is φ = 2331432.

The previous prime is 4921949. The next prime is 4922011. The reversal of 4921988 is 8891294.

It is a super-3 number, since 3×4921988³ (a number of 21 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32306 + ... + 32457.

It is an arithmetic number, because the mean of its divisors is an integer number (755580).

Almost surely, 2^4921988 is an apocalyptic number.

It is an amenable number.

4921988 is a deficient number, since it is larger than the sum of its proper divisors (4144972).

4921988 is a wasteful number, since it uses less digits than its factorization.

4921988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64786 (or 64784 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 4921988 is about 2218.5553858311. Note that the first 3 decimals coincide. The cubic root of 4921988 is about 170.1036046665.

The spelling of 4921988 in words is "four million, nine hundred twenty-one thousand, nine hundred eighty-eight".