3954644 has 6 divisors (see below), whose sum is σ = 6920634. Its totient is φ = 1977320.

The previous prime is 3954637. The next prime is 3954649. The reversal of 3954644 is 4464593.

It can be written as a sum of positive squares in only one way, i.e., 3952144 + 2500 = 1988^2 + 50^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3954649) 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 as a sum of consecutive naturals, namely, 494327 + ... + 494334.

It is an arithmetic number, because the mean of its divisors is an integer number (1153439).

Almost surely, 2^3954644 is an apocalyptic number.

It is an amenable number.

3954644 is a deficient number, since it is larger than the sum of its proper divisors (2965990).

3954644 is a wasteful number, since it uses less digits than its factorization.

3954644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988665 (or 988663 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 3954644 is about 1988.6286732319. The cubic root of 3954644 is about 158.1378383760.

The spelling of 3954644 in words is "three million, nine hundred fifty-four thousand, six hundred forty-four".