3899986 has 8 divisors (see below), whose sum is σ = 6038784. Its totient is φ = 1887060.

The previous prime is 3899983. The next prime is 3899989. The reversal of 3899986 is 6899983.

It is an interprime number because it is at equal distance from previous prime (3899983) and next prime (3899989).

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 (3899981) 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, 31390 + ... + 31513.

It is an arithmetic number, because the mean of its divisors is an integer number (754848).

Almost surely, 2^3899986 is an apocalyptic number.

3899986 is a deficient number, since it is larger than the sum of its proper divisors (2138798).

3899986 is a wasteful number, since it uses less digits than its factorization.

3899986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62936.

The product of its digits is 839808, while the sum is 52.

The square root of 3899986 is about 1974.8382212222. The cubic root of 3899986 is about 157.4059033137.

The spelling of 3899986 in words is "three million, eight hundred ninety-nine thousand, nine hundred eighty-six".