3928672 has 24 divisors (see below), whose sum is σ = 8438472. Its totient is φ = 1785600.

The previous prime is 3928669. The next prime is 3928681. The reversal of 3928672 is 2768293.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5229 + ... + 5932.

It is an arithmetic number, because the mean of its divisors is an integer number (351603).

Almost surely, 2^3928672 is an apocalyptic number.

3928672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3928672 is an abundant number, since it is smaller than the sum of its proper divisors (4509800).

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

3928672 is a wasteful number, since it uses less digits than its factorization.

3928672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11182 (or 11174 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 3928672 is about 1982.0877881668. The cubic root of 3928672 is about 157.7908893128.

The spelling of 3928672 in words is "three million, nine hundred twenty-eight thousand, six hundred seventy-two".