3922405 has 4 divisors (see below), whose sum is σ = 4706892. Its totient is φ = 3137920.

The previous prime is 3922403. The next prime is 3922409. The reversal of 3922405 is 5042293.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5042293 = 701 ⋅7193.

It can be written as a sum of positive squares in 2 ways, for example, as 2934369 + 988036 = 1713^2 + 994^2 .

It is not a de Polignac number, because 3922405 - 2¹ = 3922403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3922405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3922403) 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, 392236 + ... + 392245.

It is an arithmetic number, because the mean of its divisors is an integer number (1176723).

Almost surely, 2^3922405 is an apocalyptic number.

It is an amenable number.

3922405 is a deficient number, since it is larger than the sum of its proper divisors (784487).

3922405 is an equidigital number, since it uses as much as digits as its factorization.

3922405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784486.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 3922405 is about 1980.5062484123. The cubic root of 3922405 is about 157.7069422194.

Adding to 3922405 its reverse (5042293), we get a palindrome (8964698).

The spelling of 3922405 in words is "three million, nine hundred twenty-two thousand, four hundred five".