3871606946 has 8 divisors (see below), whose sum is σ = 5809112364. Its totient is φ = 1935236160.

The previous prime is 3871606933. The next prime is 3871607027. The reversal of 3871606946 is 6496061783.

It can be written as a sum of positive squares in 2 ways, for example, as 3728445721 + 143161225 = 61061^2 + 11965^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 3871606894 and 3871606903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275075 + ... + 288806.

Almost surely, 2^3871606946 is an apocalyptic number.

3871606946 is a deficient number, since it is larger than the sum of its proper divisors (1937505418).

3871606946 is a wasteful number, since it uses less digits than its factorization.

3871606946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567316.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 3871606946 is about 62222.2383557519. The cubic root of 3871606946 is about 1570.2317461197.

The spelling of 3871606946 in words is "three billion, eight hundred seventy-one million, six hundred six thousand, nine hundred forty-six".