3865485 has 32 divisors (see below), whose sum is σ = 6830208. Its totient is φ = 1854720.

The previous prime is 3865481. The next prime is 3865513. The reversal of 3865485 is 5845683.

It is a happy number.

It is not a de Polignac number, because 3865485 - 2² = 3865481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865481) 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, 8155 + ... + 8615.

It is an arithmetic number, because the mean of its divisors is an integer number (213444).

Almost surely, 2^3865485 is an apocalyptic number.

It is an amenable number.

3865485 is a deficient number, since it is larger than the sum of its proper divisors (2964723).

3865485 is a wasteful number, since it uses less digits than its factorization.

3865485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525.

The product of its digits is 115200, while the sum is 39.

The square root of 3865485 is about 1966.0836706509. The cubic root of 3865485 is about 156.9403670912.

The spelling of 3865485 in words is "three million, eight hundred sixty-five thousand, four hundred eighty-five".