3945968 has 40 divisors (see below), whose sum is σ = 8395296. Its totient is φ = 1785600.

The previous prime is 3945937. The next prime is 3945973. The reversal of 3945968 is 8695493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12533 + ... + 12843.

Almost surely, 2^3945968 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 3945968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4197648).

3945968 is an abundant number, since it is smaller than the sum of its proper divisors (4449328).

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

3945968 is a wasteful number, since it uses less digits than its factorization.

3945968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 387 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 3945968 is about 1986.4460727641. The cubic root of 3945968 is about 158.0221087473.

It can be divided in two parts, 3945 and 968, that added together give a cube (4913 = 17³).

The spelling of 3945968 in words is "three million, nine hundred forty-five thousand, nine hundred sixty-eight".