4939986 has 16 divisors (see below), whose sum is σ = 10309824. Its totient is φ = 1575024.

The previous prime is 4939973. The next prime is 4939993. The reversal of 4939986 is 6899394.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17761 + ... + 18036.

It is an arithmetic number, because the mean of its divisors is an integer number (644364).

Almost surely, 2^4939986 is an apocalyptic number.

4939986 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

4939986 is an abundant number, since it is smaller than the sum of its proper divisors (5369838).

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

4939986 is a wasteful number, since it uses less digits than its factorization.

4939986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35825.

The product of its digits is 419904, while the sum is 48.

The square root of 4939986 is about 2222.6079276382. The cubic root of 4939986 is about 170.3106890529.

The spelling of 4939986 in words is "four million, nine hundred thirty-nine thousand, nine hundred eighty-six".