3985455 has 32 divisors (see below), whose sum is σ = 6741504. Its totient is φ = 2007936.

The previous prime is 3985451. The next prime is 3985469. The reversal of 3985455 is 5545893.

It is not a de Polignac number, because 3985455 - 2² = 3985451 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23782 + ... + 23948.

It is an arithmetic number, because the mean of its divisors is an integer number (210672).

Almost surely, 2^3985455 is an apocalyptic number.

3985455 is a deficient number, since it is larger than the sum of its proper divisors (2756049).

3985455 is a wasteful number, since it uses less digits than its factorization.

3985455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255.

The product of its digits is 108000, while the sum is 39.

The square root of 3985455 is about 1996.3604383978. The cubic root of 3985455 is about 158.5474652763.

The spelling of 3985455 in words is "three million, nine hundred eighty-five thousand, four hundred fifty-five".