3969265 has 4 divisors (see below), whose sum is σ = 4763124. Its totient is φ = 3175408.

The previous prime is 3969263. The next prime is 3969269. The reversal of 3969265 is 5629693.

3969265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5629693 = 31 ⋅181603.

It can be written as a sum of positive squares in 2 ways, for example, as 1292769 + 2676496 = 1137^2 + 1636^2 .

It is a cyclic number.

It is not a de Polignac number, because 3969265 - 2¹ = 3969263 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3969263) 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 3 ways as a sum of consecutive naturals, for example, 396922 + ... + 396931.

It is an arithmetic number, because the mean of its divisors is an integer number (1190781).

Almost surely, 2^3969265 is an apocalyptic number.

It is an amenable number.

3969265 is a deficient number, since it is larger than the sum of its proper divisors (793859).

3969265 is an equidigital number, since it uses as much as digits as its factorization.

3969265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793858.

The product of its digits is 87480, while the sum is 40.

The square root of 3969265 is about 1992.3014330166. The cubic root of 3969265 is about 158.3324862989.

The spelling of 3969265 in words is "three million, nine hundred sixty-nine thousand, two hundred sixty-five".