3994724 has 6 divisors (see below), whose sum is σ = 6990774. Its totient is φ = 1997360.

The previous prime is 3994723. The next prime is 3994729. The reversal of 3994724 is 4274993.

3994724 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2958400 + 1036324 = 1720^2 + 1018^2 .

It is not an unprimeable number, because it can be changed into a prime (3994723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499337 + ... + 499344.

It is an arithmetic number, because the mean of its divisors is an integer number (1165129).

Almost surely, 2^3994724 is an apocalyptic number.

It is an amenable number.

3994724 is a deficient number, since it is larger than the sum of its proper divisors (2996050).

3994724 is a wasteful number, since it uses less digits than its factorization.

3994724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998685 (or 998683 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 3994724 is about 1998.6805647727. The cubic root of 3994724 is about 158.6702817559.

The spelling of 3994724 in words is "three million, nine hundred ninety-four thousand, seven hundred twenty-four".