3944997 has 16 divisors (see below), whose sum is σ = 6679680. Its totient is φ = 2254176.

The previous prime is 3944987. The next prime is 3944999. The reversal of 3944997 is 7994493.

It is not a de Polignac number, because 3944997 - 2⁶ = 3944933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10248 + ... + 10625.

It is an arithmetic number, because the mean of its divisors is an integer number (417480).

Almost surely, 2^3944997 is an apocalyptic number.

It is an amenable number.

3944997 is a deficient number, since it is larger than the sum of its proper divisors (2734683).

3944997 is a wasteful number, since it uses less digits than its factorization.

3944997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20889 (or 20883 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 3944997 is about 1986.2016513939. The cubic root of 3944997 is about 158.0091459749.

The spelling of 3944997 in words is "three million, nine hundred forty-four thousand, nine hundred ninety-seven".