3984671 has 4 divisors (see below), whose sum is σ = 3991512. Its totient is φ = 3977832.

The previous prime is 3984653. The next prime is 3984677. The reversal of 3984671 is 1764893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3984671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984677) 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, 2456 + ... + 3741.

It is an arithmetic number, because the mean of its divisors is an integer number (997878).

Almost surely, 2^3984671 is an apocalyptic number.

3984671 is a deficient number, since it is larger than the sum of its proper divisors (6841).

3984671 is an equidigital number, since it uses as much as digits as its factorization.

3984671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6840.

The product of its digits is 36288, while the sum is 38.

The square root of 3984671 is about 1996.1640714130. The cubic root of 3984671 is about 158.5370683568.

The spelling of 3984671 in words is "three million, nine hundred eighty-four thousand, six hundred seventy-one".