3921964 has 6 divisors (see below), whose sum is σ = 6863444. Its totient is φ = 1960980.

The previous prime is 3921959. The next prime is 3921971. The reversal of 3921964 is 4691293.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490242 + ... + 490249.

Almost surely, 2^3921964 is an apocalyptic number.

It is an amenable number.

3921964 is a deficient number, since it is larger than the sum of its proper divisors (2941480).

3921964 is a wasteful number, since it uses less digits than its factorization.

3921964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980495 (or 980493 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 3921964 is about 1980.3949101126. The cubic root of 3921964 is about 157.7010316136.

The spelling of 3921964 in words is "three million, nine hundred twenty-one thousand, nine hundred sixty-four".