3985667 has 8 divisors (see below), whose sum is σ = 4823136. Its totient is φ = 3215232.

The previous prime is 3985661. The next prime is 3985669. The reversal of 3985667 is 7665893.

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

It is a cyclic number.

It is not a de Polignac number, because 3985667 - 2¹⁶ = 3920131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3985661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16628 + ... + 16865.

It is an arithmetic number, because the mean of its divisors is an integer number (602892).

Almost surely, 2^3985667 is an apocalyptic number.

3985667 is a deficient number, since it is larger than the sum of its proper divisors (837469).

3985667 is a wasteful number, since it uses less digits than its factorization.

3985667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33517.

The product of its digits is 272160, while the sum is 44.

The square root of 3985667 is about 1996.4135343160. The cubic root of 3985667 is about 158.5502764540.

The spelling of 3985667 in words is "three million, nine hundred eighty-five thousand, six hundred sixty-seven".