3919972 has 12 divisors (see below), whose sum is σ = 7840000. Its totient is φ = 1679976.

The previous prime is 3919961. The next prime is 3919973. The reversal of 3919972 is 2799193.

3919972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

3919972 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3919973) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 69972 + ... + 70027.

Almost surely, 2^3919972 is an apocalyptic number.

It is an amenable number.

3919972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3919972 is a wasteful number, since it uses less digits than its factorization.

3919972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140010 (or 140008 counting only the distinct ones).

The product of its digits is 30618, while the sum is 40.

The square root of 3919972 is about 1979.8919162419. The cubic root of 3919972 is about 157.6743278453.

The spelling of 3919972 in words is "three million, nine hundred nineteen thousand, nine hundred seventy-two".