4821986 has 16 divisors (see below), whose sum is σ = 7838208. Its totient is φ = 2211600.

The previous prime is 4821937. The next prime is 4821997. The reversal of 4821986 is 6891284.

It is a Curzon number.

It is a nialpdrome in base 13.

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 in 7 ways as a sum of consecutive naturals, for example, 4481 + ... + 5451.

It is an arithmetic number, because the mean of its divisors is an integer number (489888).

Almost surely, 2^4821986 is an apocalyptic number.

4821986 is a deficient number, since it is larger than the sum of its proper divisors (3016222).

4821986 is a wasteful number, since it uses less digits than its factorization.

4821986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177.

The product of its digits is 27648, while the sum is 38.

The square root of 4821986 is about 2195.9020925351. The cubic root of 4821986 is about 168.9436923627.

The spelling of 4821986 in words is "four million, eight hundred twenty-one thousand, nine hundred eighty-six".