3985435 has 16 divisors (see below), whose sum is σ = 4955040. Its totient is φ = 3075840.

The previous prime is 3985433. The next prime is 3985451. The reversal of 3985435 is 5345893.

3985435 = 225² + 226² + ... + 285².

3985435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3985435 - 2¹ = 3985433 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3985394 and 3985403.

It is not an unprimeable number, because it can be changed into a prime (3985433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22176 + ... + 22354.

It is an arithmetic number, because the mean of its divisors is an integer number (309690).

Almost surely, 2^3985435 is an apocalyptic number.

3985435 is a deficient number, since it is larger than the sum of its proper divisors (969605).

3985435 is a wasteful number, since it uses less digits than its factorization.

3985435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318.

The product of its digits is 64800, while the sum is 37.

The square root of 3985435 is about 1996.3554292761. The cubic root of 3985435 is about 158.5472000657.

The spelling of 3985435 in words is "three million, nine hundred eighty-five thousand, four hundred thirty-five".