3958784 has 24 divisors (see below), whose sum is σ = 7919730. Its totient is φ = 1978368.

The previous prime is 3958777. The next prime is 3958789. The reversal of 3958784 is 4878593.

It can be written as a sum of positive squares in only one way, i.e., 3097600 + 861184 = 1760^2 + 928^2 .

It is not an unprimeable number, because it can be changed into a prime (3958789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082 + ... + 3014.

Almost surely, 2^3958784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3958784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3959865).

3958784 is an abundant number, since it is smaller than the sum of its proper divisors (3960946).

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

3958784 is an equidigital number, since it uses as much as digits as its factorization.

3958784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955 (or 1935 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 3958784 is about 1989.6693192589. The cubic root of 3958784 is about 158.1930024081.

The spelling of 3958784 in words is "three million, nine hundred fifty-eight thousand, seven hundred eighty-four".