3984972 has 12 divisors (see below), whose sum is σ = 9298296. Its totient is φ = 1328320.

The previous prime is 3984971. The next prime is 3984983. The reversal of 3984972 is 2794893.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 3⁵ + 9⁶ + 8⁷ + 4⁵ + 9⁶ + 7⁷ + 2⁷ .

It is not an unprimeable number, because it can be changed into a prime (3984971) 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, 166029 + ... + 166052.

It is an arithmetic number, because the mean of its divisors is an integer number (774858).

Almost surely, 2^3984972 is an apocalyptic number.

It is an amenable number.

3984972 is an abundant number, since it is smaller than the sum of its proper divisors (5313324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3984972 is a wasteful number, since it uses less digits than its factorization.

3984972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332088 (or 332086 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 3984972 is about 1996.2394645934. The cubic root of 3984972 is about 158.5410601925.

The spelling of 3984972 in words is "three million, nine hundred eighty-four thousand, nine hundred seventy-two".