3923946 has 48 divisors (see below), whose sum is σ = 9402120. Its totient is φ = 1175040.

The previous prime is 3923917. The next prime is 3923963. The reversal of 3923946 is 6493293.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2576025 + 1347921 = 1605^2 + 1161^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3923946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9390 + ... + 9798.

Almost surely, 2^3923946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3923946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4701060).

3923946 is an abundant number, since it is smaller than the sum of its proper divisors (5478174).

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

3923946 is a wasteful number, since it uses less digits than its factorization.

3923946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 468 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 3923946 is about 1980.8952521524. The cubic root of 3923946 is about 157.7275923544.

The spelling of 3923946 in words is "three million, nine hundred twenty-three thousand, nine hundred forty-six".