3922865 has 4 divisors (see below), whose sum is σ = 4707444. Its totient is φ = 3138288.

The previous prime is 3922843. The next prime is 3922871. The reversal of 3922865 is 5682293.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2686321 + 1236544 = 1639^2 + 1112^2 .

It is a cyclic number.

It is not a de Polignac number, because 3922865 - 2¹⁸ = 3660721 is a prime.

It is a d-powerful number, because it can be written as 3¹⁰ + 9³ + 2 + 2¹³ + 8⁷ + 6⁸ + 5⁷ .

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392282 + ... + 392291.

It is an arithmetic number, because the mean of its divisors is an integer number (1176861).

Almost surely, 2^3922865 is an apocalyptic number.

It is an amenable number.

3922865 is a deficient number, since it is larger than the sum of its proper divisors (784579).

3922865 is an equidigital number, since it uses as much as digits as its factorization.

3922865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784578.

The product of its digits is 25920, while the sum is 35.

The square root of 3922865 is about 1980.6223769310. The cubic root of 3922865 is about 157.7131070050.

It can be divided in two parts, 39228 and 65, that added together give a palindrome (39293).

The spelling of 3922865 in words is "three million, nine hundred twenty-two thousand, eight hundred sixty-five".