3906706 has 16 divisors (see below), whose sum is σ = 6111000. Its totient is φ = 1870848.

The previous prime is 3906701. The next prime is 3906709. The reversal of 3906706 is 6076093.

It can be written as a sum of positive squares in 4 ways, for example, as 3330625 + 576081 = 1825^2 + 759^2 .

It is not an unprimeable number, because it can be changed into a prime (3906701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11020 + ... + 11368.

Almost surely, 2^3906706 is an apocalyptic number.

3906706 is a deficient number, since it is larger than the sum of its proper divisors (2204294).

3906706 is a wasteful number, since it uses less digits than its factorization.

3906706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 3906706 is about 1976.5388941278. The cubic root of 3906706 is about 157.4962592544.

The spelling of 3906706 in words is "three million, nine hundred six thousand, seven hundred six".