4986891 has 24 divisors (see below), whose sum is σ = 8867040. Its totient is φ = 2630016.

The previous prime is 4986887. The next prime is 4986893. The reversal of 4986891 is 1986894.

4986891 = 59² + 60² + ... + 247².

It is not a de Polignac number, because 4986891 - 2² = 4986887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4986893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2226 + ... + 3863.

It is an arithmetic number, because the mean of its divisors is an integer number (369460).

Almost surely, 2^4986891 is an apocalyptic number.

4986891 is a deficient number, since it is larger than the sum of its proper divisors (3880149).

4986891 is a wasteful number, since it uses less digits than its factorization.

4986891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6115 (or 6112 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 4986891 is about 2233.1347921700. The cubic root of 4986891 is about 170.8480233782.

The spelling of 4986891 in words is "four million, nine hundred eighty-six thousand, eight hundred ninety-one".