3986746 has 8 divisors (see below), whose sum is σ = 6186420. Its totient is φ = 1924608.

The previous prime is 3986737. The next prime is 3986747. The reversal of 3986746 is 6476893.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3956121 + 30625 = 1989^2 + 175^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3986747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34311 + ... + 34426.

Almost surely, 2^3986746 is an apocalyptic number.

3986746 is a deficient number, since it is larger than the sum of its proper divisors (2199674).

3986746 is a wasteful number, since it uses less digits than its factorization.

3986746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68768.

The product of its digits is 217728, while the sum is 43.

The square root of 3986746 is about 1996.6837506225. The cubic root of 3986746 is about 158.5645827431.

The spelling of 3986746 in words is "three million, nine hundred eighty-six thousand, seven hundred forty-six".