3857359943 has 4 divisors (see below), whose sum is σ = 3870525288. Its totient is φ = 3844194600.

The previous prime is 3857359903. The next prime is 3857359967. The reversal of 3857359943 is 3499537583.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3857359943 - 2¹⁰ = 3857358919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857359903) 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 3 ways as a sum of consecutive naturals, for example, 6582233 + ... + 6582818.

It is an arithmetic number, because the mean of its divisors is an integer number (967631322).

Almost surely, 2^3857359943 is an apocalyptic number.

3857359943 is a deficient number, since it is larger than the sum of its proper divisors (13165345).

3857359943 is a wasteful number, since it uses less digits than its factorization.

3857359943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13165344.

The product of its digits is 12247200, while the sum is 56.

The square root of 3857359943 is about 62107.6480234117. The cubic root of 3857359943 is about 1568.3032967839.

The spelling of 3857359943 in words is "three billion, eight hundred fifty-seven million, three hundred fifty-nine thousand, nine hundred forty-three".