3806884857 has 4 divisors (see below), whose sum is σ = 5075846480. Its totient is φ = 2537923236.

The previous prime is 3806884849. The next prime is 3806884871. The reversal of 3806884857 is 7584886083.

It is a happy number.

3806884857 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7584886083 = 3 ⋅2528295361.

It is not a de Polignac number, because 3806884857 - 2³ = 3806884849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3806884797 and 3806884806.

It is not an unprimeable number, because it can be changed into a prime (3806884057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634480807 + ... + 634480812.

It is an arithmetic number, because the mean of its divisors is an integer number (1268961620).

Almost surely, 2^3806884857 is an apocalyptic number.

It is an amenable number.

3806884857 is a deficient number, since it is larger than the sum of its proper divisors (1268961623).

3806884857 is a wasteful number, since it uses less digits than its factorization.

3806884857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268961622.

The product of its (nonzero) digits is 10321920, while the sum is 57.

The square root of 3806884857 is about 61699.9583225143. The cubic root of 3806884857 is about 1561.4326168187.

The spelling of 3806884857 in words is "three billion, eight hundred six million, eight hundred eighty-four thousand, eight hundred fifty-seven".