3843543421 has 8 divisors (see below), whose sum is σ = 4054291200. Its totient is φ = 3633641280.

The previous prime is 3843543419. The next prime is 3843543437. The reversal of 3843543421 is 1243453483.

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

It is a cyclic number.

It is not a de Polignac number, because 3843543421 - 2¹ = 3843543419 is a prime.

It is a super-2 number, since 2×3843543421² = 29545652058224766482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3843549421) 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 7 ways as a sum of consecutive naturals, for example, 202060 + ... + 220261.

It is an arithmetic number, because the mean of its divisors is an integer number (506786400).

Almost surely, 2^3843543421 is an apocalyptic number.

It is an amenable number.

3843543421 is a deficient number, since it is larger than the sum of its proper divisors (210747779).

3843543421 is a wasteful number, since it uses less digits than its factorization.

3843543421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422819.

The product of its digits is 138240, while the sum is 37.

The square root of 3843543421 is about 61996.3178019469. The cubic root of 3843543421 is about 1566.4285758954.

The spelling of 3843543421 in words is "three billion, eight hundred forty-three million, five hundred forty-three thousand, four hundred twenty-one".