3806852845 has 4 divisors (see below), whose sum is σ = 4568223420. Its totient is φ = 3045482272.

The previous prime is 3806852831. The next prime is 3806852899. The reversal of 3806852845 is 5482586083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5482586083 = 13 ⋅421737391.

It can be written as a sum of positive squares in 2 ways, for example, as 1847108484 + 1959744361 = 42978^2 + 44269^2 .

It is a cyclic number.

It is not a de Polignac number, because 3806852845 - 2²⁵ = 3773298413 is a prime.

It is a super-3 number, since 3×3806852845³ (a number of 30 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 380685280 + ... + 380685289.

It is an arithmetic number, because the mean of its divisors is an integer number (1142055855).

Almost surely, 2^3806852845 is an apocalyptic number.

It is an amenable number.

3806852845 is a deficient number, since it is larger than the sum of its proper divisors (761370575).

3806852845 is an equidigital number, since it uses as much as digits as its factorization.

3806852845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761370574.

The product of its (nonzero) digits is 1843200, while the sum is 49.

The square root of 3806852845 is about 61699.6989052621. The cubic root of 3806852845 is about 1561.4282401238.

The spelling of 3806852845 in words is "three billion, eight hundred six million, eight hundred fifty-two thousand, eight hundred forty-five".