3919872 has 104 divisors (see below), whose sum is σ = 11795040. Its totient is φ = 1146880.

The previous prime is 3919859. The next prime is 3919873. The reversal of 3919872 is 2789193.

It is a self number, because there is not a number n which added to its sum of digits gives 3919872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3919873) 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, 135154 + ... + 135182.

Almost surely, 2^3919872 is an apocalyptic number.

3919872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3919872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5897520).

3919872 is an abundant number, since it is smaller than the sum of its proper divisors (7875168).

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

3919872 is a wasteful number, since it uses less digits than its factorization.

3919872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 45 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 3919872 is about 1979.8666621770. The cubic root of 3919872 is about 157.6729870562.

The spelling of 3919872 in words is "three million, nine hundred nineteen thousand, eight hundred seventy-two".