3986894 has 8 divisors (see below), whose sum is σ = 6042288. Its totient is φ = 1972800.

The previous prime is 3986839. The next prime is 3986897. The reversal of 3986894 is 4986893.

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

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 in 3 ways as a sum of consecutive naturals, for example, 10082 + ... + 10469.

It is an arithmetic number, because the mean of its divisors is an integer number (755286).

Almost surely, 2^3986894 is an apocalyptic number.

3986894 is a deficient number, since it is larger than the sum of its proper divisors (2055394).

3986894 is a wasteful number, since it uses less digits than its factorization.

3986894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20650.

The product of its digits is 373248, while the sum is 47.

The square root of 3986894 is about 1996.7208117311. The cubic root of 3986894 is about 158.5665448502.

Subtracting 3986894 from its reverse (4986893), we obtain a palindrome (999999).

The spelling of 3986894 in words is "three million, nine hundred eighty-six thousand, eight hundred ninety-four".