3985653 has 16 divisors (see below), whose sum is σ = 6189696. Its totient is φ = 2233920.

The previous prime is 3985637. The next prime is 3985661. The reversal of 3985653 is 3565893.

It is not a de Polignac number, because 3985653 - 2⁴ = 3985637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678 + ... + 2903.

It is an arithmetic number, because the mean of its divisors is an integer number (386856).

Almost surely, 2^3985653 is an apocalyptic number.

It is an amenable number.

3985653 is a deficient number, since it is larger than the sum of its proper divisors (2204043).

3985653 is a wasteful number, since it uses less digits than its factorization.

3985653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644.

The product of its digits is 97200, while the sum is 39.

The square root of 3985653 is about 1996.4100280253. The cubic root of 3985653 is about 158.5500908133.

The spelling of 3985653 in words is "three million, nine hundred eighty-five thousand, six hundred fifty-three".