4891868 has 6 divisors (see below), whose sum is σ = 8560776. Its totient is φ = 2445932.

The previous prime is 4891853. The next prime is 4891879. The reversal of 4891868 is 8681984.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 611480 + ... + 611487.

It is an arithmetic number, because the mean of its divisors is an integer number (1426796).

Almost surely, 2^4891868 is an apocalyptic number.

It is an amenable number.

4891868 is a deficient number, since it is larger than the sum of its proper divisors (3668908).

4891868 is a wasteful number, since it uses less digits than its factorization.

4891868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222971 (or 1222969 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 4891868 is about 2211.7567678205. The cubic root of 4891868 is about 169.7559126810.

The spelling of 4891868 in words is "four million, eight hundred ninety-one thousand, eight hundred sixty-eight".