3846827421 has 12 divisors (see below), whose sum is σ = 5557119360. Its totient is φ = 2564278920.

The previous prime is 3846827401. The next prime is 3846827423. The reversal of 3846827421 is 1247286483.

It is a happy number.

It is not a de Polignac number, because 3846827421 - 2¹⁴ = 3846811037 is a prime.

It is a super-2 number, since 2×3846827421² = 29596162413915022482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3846827423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103540 + ... + 135698.

It is an arithmetic number, because the mean of its divisors is an integer number (463093280).

Almost surely, 2^3846827421 is an apocalyptic number.

It is an amenable number.

3846827421 is a deficient number, since it is larger than the sum of its proper divisors (1710291939).

3846827421 is a wasteful number, since it uses less digits than its factorization.

3846827421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45456 (or 45453 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 3846827421 is about 62022.7975908859. The cubic root of 3846827421 is about 1566.8745781461.

The spelling of 3846827421 in words is "three billion, eight hundred forty-six million, eight hundred twenty-seven thousand, four hundred twenty-one".