3945722 has 8 divisors (see below), whose sum is σ = 6456672. Its totient is φ = 1793500.

The previous prime is 3945703. The next prime is 3945727. The reversal of 3945722 is 2275493.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3945727) by changing a digit.

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, 89654 + ... + 89697.

It is an arithmetic number, because the mean of its divisors is an integer number (807084).

Almost surely, 2^3945722 is an apocalyptic number.

3945722 is a deficient number, since it is larger than the sum of its proper divisors (2510950).

3945722 is a wasteful number, since it uses less digits than its factorization.

3945722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179364.

The product of its digits is 15120, while the sum is 32.

The square root of 3945722 is about 1986.3841521720. The cubic root of 3945722 is about 158.0188248681.

It can be divided in two parts, 394 and 5722, that added together give a palindrome (6116).

The spelling of 3945722 in words is "three million, nine hundred forty-five thousand, seven hundred twenty-two".