3858922861 has 8 divisors (see below), whose sum is σ = 3915960120. Its totient is φ = 3801998592.

The previous prime is 3858922853. The next prime is 3858922889. The reversal of 3858922861 is 1682298583.

It can be written as a sum of positive squares in 4 ways, for example, as 649636 + 3858273225 = 806^2 + 62115^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3858922861 - 2³ = 3858922853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3858922799 and 3858922808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3858922801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41835 + ... + 97303.

It is an arithmetic number, because the mean of its divisors is an integer number (489495015).

Almost surely, 2^3858922861 is an apocalyptic number.

It is an amenable number.

3858922861 is a deficient number, since it is larger than the sum of its proper divisors (57037259).

3858922861 is an equidigital number, since it uses as much as digits as its factorization.

3858922861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56495.

The product of its digits is 1658880, while the sum is 52.

The square root of 3858922861 is about 62120.2290803889. The cubic root of 3858922861 is about 1568.5150822637.

The spelling of 3858922861 in words is "three billion, eight hundred fifty-eight million, nine hundred twenty-two thousand, eight hundred sixty-one".