3857833345 has 4 divisors (see below), whose sum is σ = 4629400020. Its totient is φ = 3086266672.

The previous prime is 3857833337. The next prime is 3857833349. The reversal of 3857833345 is 5433387583.

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 2276339521 + 1581493824 = 47711^2 + 39768^2 .

It is a cyclic number.

It is not a de Polignac number, because 3857833345 - 2³ = 3857833337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3857833349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385783330 + ... + 385783339.

It is an arithmetic number, because the mean of its divisors is an integer number (1157350005).

Almost surely, 2^3857833345 is an apocalyptic number.

It is an amenable number.

3857833345 is a deficient number, since it is larger than the sum of its proper divisors (771566675).

3857833345 is an equidigital number, since it uses as much as digits as its factorization.

3857833345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771566674.

The product of its digits is 3628800, while the sum is 49.

The square root of 3857833345 is about 62111.4590474254. The cubic root of 3857833345 is about 1568.3674518501.

The spelling of 3857833345 in words is "three billion, eight hundred fifty-seven million, eight hundred thirty-three thousand, three hundred forty-five".