3986039 has 4 divisors (see below), whose sum is σ = 3990120. Its totient is φ = 3981960.

The previous prime is 3986033. The next prime is 3986051. The reversal of 3986039 is 9306893.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3986039 - 2²⁰ = 2937463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3985993 and 3986011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392 + ... + 2850.

It is an arithmetic number, because the mean of its divisors is an integer number (997530).

Almost surely, 2^3986039 is an apocalyptic number.

3986039 is a deficient number, since it is larger than the sum of its proper divisors (4081).

3986039 is a wasteful number, since it uses less digits than its factorization.

3986039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 3986039 is about 1996.5066992124. The cubic root of 3986039 is about 158.5552090344. Note that the first 3 decimals are identical.

The spelling of 3986039 in words is "three million, nine hundred eighty-six thousand, thirty-nine".