3944427 has 4 divisors (see below), whose sum is σ = 5259240. Its totient is φ = 2629616.

The previous prime is 3944411. The next prime is 3944429. The reversal of 3944427 is 7244493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3944427 - 2⁴ = 3944411 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3944429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657402 + ... + 657407.

It is an arithmetic number, because the mean of its divisors is an integer number (1314810).

Almost surely, 2^3944427 is an apocalyptic number.

3944427 is a deficient number, since it is larger than the sum of its proper divisors (1314813).

3944427 is a wasteful number, since it uses less digits than its factorization.

3944427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314812.

The product of its digits is 24192, while the sum is 33.

The square root of 3944427 is about 1986.0581562482. The cubic root of 3944427 is about 158.0015355296.

It can be divided in two parts, 3944 and 427, that added together give a triangular number (4371 = T₉₃).

The spelling of 3944427 in words is "three million, nine hundred forty-four thousand, four hundred twenty-seven".