3886802845 has 4 divisors (see below), whose sum is σ = 4664163420. Its totient is φ = 3109442272.

The previous prime is 3886802839. The next prime is 3886802903. The reversal of 3886802845 is 5482086883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1654618329 + 2232184516 = 40677^2 + 47246^2 .

It is a cyclic number.

It is not a de Polignac number, because 3886802845 - 2²³ = 3878414237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3886802792 and 3886802801.

It is a congruent number.

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, 388680280 + ... + 388680289.

It is an arithmetic number, because the mean of its divisors is an integer number (1166040855).

Almost surely, 2^3886802845 is an apocalyptic number.

It is an amenable number.

3886802845 is a deficient number, since it is larger than the sum of its proper divisors (777360575).

3886802845 is an equidigital number, since it uses as much as digits as its factorization.

3886802845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777360574.

The product of its (nonzero) digits is 2949120, while the sum is 52.

The square root of 3886802845 is about 62344.2286422729. The cubic root of 3886802845 is about 1572.2834293373.

The spelling of 3886802845 in words is "three billion, eight hundred eighty-six million, eight hundred two thousand, eight hundred forty-five".