3984265 has 4 divisors (see below), whose sum is σ = 4781124. Its totient is φ = 3187408.

The previous prime is 3984259. The next prime is 3984269. The reversal of 3984265 is 5624893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5624893 = 19 ⋅296047.

It can be written as a sum of positive squares in 2 ways, for example, as 876096 + 3108169 = 936^2 + 1763^2 .

It is a cyclic number.

It is not a de Polignac number, because 3984265 - 2¹⁷ = 3853193 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3984269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398422 + ... + 398431.

It is an arithmetic number, because the mean of its divisors is an integer number (1195281).

Almost surely, 2^3984265 is an apocalyptic number.

It is an amenable number.

3984265 is a deficient number, since it is larger than the sum of its proper divisors (796859).

3984265 is an equidigital number, since it uses as much as digits as its factorization.

3984265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796858.

The product of its digits is 51840, while the sum is 37.

The square root of 3984265 is about 1996.0623737749. The cubic root of 3984265 is about 158.5316837018.

The spelling of 3984265 in words is "three million, nine hundred eighty-four thousand, two hundred sixty-five".