3985424 has 10 divisors (see below), whose sum is σ = 7721790. Its totient is φ = 1992704.

The previous prime is 3985409. The next prime is 3985433. The reversal of 3985424 is 4245893.

It can be written as a sum of positive squares in only one way, i.e., 2347024 + 1638400 = 1532^2 + 1280^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124529 + ... + 124560.

It is an arithmetic number, because the mean of its divisors is an integer number (772179).

Almost surely, 2^3985424 is an apocalyptic number.

It is an amenable number.

3985424 is a deficient number, since it is larger than the sum of its proper divisors (3736366).

3985424 is a wasteful number, since it uses less digits than its factorization.

3985424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249097 (or 249091 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 3985424 is about 1996.3526742537. The cubic root of 3985424 is about 158.5470541995.

The spelling of 3985424 in words is "three million, nine hundred eighty-five thousand, four hundred twenty-four".