3984567 has 8 divisors (see below), whose sum is σ = 5456496. Its totient is φ = 2584512.

The previous prime is 3984521. The next prime is 3984587. The reversal of 3984567 is 7654893.

It is a happy number.

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

It is not a de Polignac number, because 3984567 - 2⁷ = 3984439 is a prime.

3984567 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3984517) 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, 17838 + ... + 18059.

It is an arithmetic number, because the mean of its divisors is an integer number (682062).

Almost surely, 2^3984567 is an apocalyptic number.

3984567 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3984567 is a deficient number, since it is larger than the sum of its proper divisors (1471929).

3984567 is a wasteful number, since it uses less digits than its factorization.

3984567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35937.

The product of its digits is 181440, while the sum is 42.

The square root of 3984567 is about 1996.1380212801. The cubic root of 3984567 is about 158.5356890712.

The spelling of 3984567 in words is "three million, nine hundred eighty-four thousand, five hundred sixty-seven".