3922705 has 4 divisors (see below), whose sum is σ = 4707252. Its totient is φ = 3138160.

The previous prime is 3922691. The next prime is 3922717. The reversal of 3922705 is 5072293.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5072293 = 37 ⋅137089.

It can be written as a sum of positive squares in 2 ways, for example, as 2169729 + 1752976 = 1473^2 + 1324^2 .

It is not a de Polignac number, because 3922705 - 2⁷ = 3922577 is a prime.

It is a super-2 number, since 2×3922705² = 30775229034050, which contains 22 as substring.

It is a Duffinian number.

3922705 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392266 + ... + 392275.

It is an arithmetic number, because the mean of its divisors is an integer number (1176813).

Almost surely, 2^3922705 is an apocalyptic number.

It is an amenable number.

3922705 is a deficient number, since it is larger than the sum of its proper divisors (784547).

3922705 is an equidigital number, since it uses as much as digits as its factorization.

3922705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784546.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 3922705 is about 1980.5819851751. The cubic root of 3922705 is about 157.7109627864.

Adding to 3922705 its reverse (5072293), we get a palindrome (8994998).

The spelling of 3922705 in words is "three million, nine hundred twenty-two thousand, seven hundred five".