4921808 has 20 divisors (see below), whose sum is σ = 9844608. Its totient is φ = 2381280.

The previous prime is 4921783. The next prime is 4921811. The reversal of 4921808 is 8081294.

It is a happy number.

4921808 is an admirable number.

It is a congruent number.

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, 4466 + ... + 5457.

Almost surely, 2^4921808 is an apocalyptic number.

It is an amenable number.

4921808 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4921808 is a wasteful number, since it uses less digits than its factorization.

4921808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9962 (or 9956 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 4921808 is about 2218.5148185216. The cubic root of 4921808 is about 170.1015310449.

The spelling of 4921808 in words is "four million, nine hundred twenty-one thousand, eight hundred eight".