3920706 has 24 divisors (see below), whose sum is σ = 8624304. Its totient is φ = 1287000.

The previous prime is 3920689. The next prime is 3920729. The reversal of 3920706 is 6070293.

It is a self number, because there is not a number n which added to its sum of digits gives 3920706.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (359346).

Almost surely, 2^3920706 is an apocalyptic number.

3920706 is an abundant number, since it is smaller than the sum of its proper divisors (4703598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3920706 is a wasteful number, since it uses less digits than its factorization.

3920706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326 (or 3323 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 3920706 is about 1980.0772712195. The cubic root of 3920706 is about 157.6841685392.

Adding to 3920706 its reverse (6070293), we get a palindrome (9990999).

The spelling of 3920706 in words is "three million, nine hundred twenty thousand, seven hundred six".