3906690 has 16 divisors (see below), whose sum is σ = 9376128. Its totient is φ = 1041776.

The previous prime is 3906667. The next prime is 3906691. The reversal of 3906690 is 966093.

3906690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3906690² = 30524453512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3906691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65082 + ... + 65141.

It is an arithmetic number, because the mean of its divisors is an integer number (586008).

Almost surely, 2^3906690 is an apocalyptic number.

3906690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3906690 is an abundant number, since it is smaller than the sum of its proper divisors (5469438).

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

3906690 is a wasteful number, since it uses less digits than its factorization.

3906690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130233.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 3906690 is about 1976.5348466445. The cubic root of 3906690 is about 157.4960442443.

The spelling of 3906690 in words is "three million, nine hundred six thousand, six hundred ninety".