4943986 has 4 divisors (see below), whose sum is σ = 7415982. Its totient is φ = 2471992.

The previous prime is 4943963. The next prime is 4944019. The reversal of 4943986 is 6893494.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4124961 + 819025 = 2031^2 + 905^2 .

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, 1235995 + ... + 1235998.

Almost surely, 2^4943986 is an apocalyptic number.

4943986 is a deficient number, since it is larger than the sum of its proper divisors (2471996).

4943986 is a wasteful number, since it uses less digits than its factorization.

4943986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2471995.

The product of its digits is 186624, while the sum is 43.

The square root of 4943986 is about 2223.5075893732. The cubic root of 4943986 is about 170.3566445791.

It can be divided in two parts, 4943 and 986, that added together give a square (5929 = 77²).

The spelling of 4943986 in words is "four million, nine hundred forty-three thousand, nine hundred eighty-six".