4123986 has 8 divisors (see below), whose sum is σ = 8247984. Its totient is φ = 1374660.

The previous prime is 4123967. The next prime is 4123997. The reversal of 4123986 is 6893214.

It is a sphenic number, since it is the product of 3 distinct primes.

4123986 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343660 + ... + 343671.

It is an arithmetic number, because the mean of its divisors is an integer number (1030998).

Almost surely, 2^4123986 is an apocalyptic number.

4123986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4123986 is a wasteful number, since it uses less digits than its factorization.

4123986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687336.

The product of its digits is 10368, while the sum is 33.

The square root of 4123986 is about 2030.7599562725. The cubic root of 4123986 is about 160.3635742519.

The spelling of 4123986 in words is "four million, one hundred twenty-three thousand, nine hundred eighty-six".