3919664 has 40 divisors (see below), whose sum is σ = 8808960. Its totient is φ = 1654848.

The previous prime is 3919627. The next prime is 3919667. The reversal of 3919664 is 4669193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3919667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8627 + ... + 9069.

It is an arithmetic number, because the mean of its divisors is an integer number (220224).

Almost surely, 2^3919664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3919664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4404480).

3919664 is an abundant number, since it is smaller than the sum of its proper divisors (4889296).

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

3919664 is a wasteful number, since it uses less digits than its factorization.

3919664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 531 counting only the distinct ones).

The product of its digits is 34992, while the sum is 38.

The square root of 3919664 is about 1979.8141326902. The cubic root of 3919664 is about 157.6701981419.

The spelling of 3919664 in words is "three million, nine hundred nineteen thousand, six hundred sixty-four".