3862838391 has 8 divisors (see below), whose sum is σ = 5158245744. Its totient is φ = 2571328320.

The previous prime is 3862838381. The next prime is 3862838459. The reversal of 3862838391 is 1938382683.

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

It is not a de Polignac number, because 3862838391 - 2⁶ = 3862838327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3862838321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972006 + ... + 975971.

It is an arithmetic number, because the mean of its divisors is an integer number (644780718).

Almost surely, 2^3862838391 is an apocalyptic number.

3862838391 is a deficient number, since it is larger than the sum of its proper divisors (1295407353).

3862838391 is a wasteful number, since it uses less digits than its factorization.

3862838391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948641.

The product of its digits is 1492992, while the sum is 51.

The square root of 3862838391 is about 62151.7368301160. The cubic root of 3862838391 is about 1569.0454108926.

The spelling of 3862838391 in words is "three billion, eight hundred sixty-two million, eight hundred thirty-eight thousand, three hundred ninety-one".