3806406706 has 4 divisors (see below), whose sum is σ = 5709610062. Its totient is φ = 1903203352.

The previous prime is 3806406691. The next prime is 3806406707. The reversal of 3806406706 is 6076046083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6076046083 = 233 ⋅26077451.

It can be written as a sum of positive squares in only one way, i.e., 2647617025 + 1158789681 = 51455^2 + 34041^2 .

It is a super-2 number, since 2×3806406706² = 28977464022963540872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3806406707) 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 as a sum of consecutive naturals, namely, 951601675 + ... + 951601678.

Almost surely, 2^3806406706 is an apocalyptic number.

3806406706 is a deficient number, since it is larger than the sum of its proper divisors (1903203356).

3806406706 is a wasteful number, since it uses less digits than its factorization.

3806406706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903203355.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 3806406706 is about 61696.0833927082. The cubic root of 3806406706 is about 1561.3672412465.

The spelling of 3806406706 in words is "three billion, eight hundred six million, four hundred six thousand, seven hundred six".