3986896 has 10 divisors (see below), whose sum is σ = 7724642. Its totient is φ = 1993440.

The previous prime is 3986839. The next prime is 3986897. The reversal of 3986896 is 6986893.

It can be written as a sum of positive squares in only one way, i.e., 3857296 + 129600 = 1964^2 + 360^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124575 + ... + 124606.

Almost surely, 2^3986896 is an apocalyptic number.

It is an amenable number.

3986896 is a deficient number, since it is larger than the sum of its proper divisors (3737746).

3986896 is a wasteful number, since it uses less digits than its factorization.

3986896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249189 (or 249183 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 3986896 is about 1996.7213125522. The cubic root of 3986896 is about 158.5665713648.

The spelling of 3986896 in words is "three million, nine hundred eighty-six thousand, eight hundred ninety-six".