3865269 has 4 divisors (see below), whose sum is σ = 5153696. Its totient is φ = 2576844.

The previous prime is 3865247. The next prime is 3865283. The reversal of 3865269 is 9625683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3865269 - 2⁸ = 3865013 is a prime.

It is a super-2 number, since 2×3865269² = 29880608884722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865229) 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, 644209 + ... + 644214.

It is an arithmetic number, because the mean of its divisors is an integer number (1288424).

Almost surely, 2^3865269 is an apocalyptic number.

It is an amenable number.

3865269 is a deficient number, since it is larger than the sum of its proper divisors (1288427).

3865269 is a wasteful number, since it uses less digits than its factorization.

3865269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288426.

The product of its digits is 77760, while the sum is 39.

The square root of 3865269 is about 1966.0287383454. The cubic root of 3865269 is about 156.9374438056.

The spelling of 3865269 in words is "three million, eight hundred sixty-five thousand, two hundred sixty-nine".