3985972 has 24 divisors (see below), whose sum is σ = 7408800. Its totient is φ = 1871136.

The previous prime is 3985951. The next prime is 3985999. The reversal of 3985972 is 2795893.

It is a happy number.

3985972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13458 + ... + 13750.

It is an arithmetic number, because the mean of its divisors is an integer number (308700).

Almost surely, 2^3985972 is an apocalyptic number.

It is an amenable number.

3985972 is a deficient number, since it is larger than the sum of its proper divisors (3422828).

3985972 is a wasteful number, since it uses less digits than its factorization.

3985972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 493 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 3985972 is about 1996.4899198343. The cubic root of 3985972 is about 158.5543206622.

The spelling of 3985972 in words is "three million, nine hundred eighty-five thousand, nine hundred seventy-two".