3843121 has 2 divisors, whose sum is σ = 3843122. Its totient is φ = 3843120.

The previous prime is 3843107. The next prime is 3843127. The reversal of 3843121 is 1213483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3841600 + 1521 = 1960^2 + 39^2 .

It is an emirp because it is prime and its reverse (1213483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3843121 - 2¹¹ = 3841073 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3843092 and 3843101.

It is not a weakly prime, because it can be changed into another prime (3843127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1921560 + 1921561.

It is an arithmetic number, because the mean of its divisors is an integer number (1921561).

Almost surely, 2^3843121 is an apocalyptic number.

It is an amenable number.

3843121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3843121 is an equidigital number, since it uses as much as digits as its factorization.

3843121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 22.

The square root of 3843121 is about 1960.3879718056. The cubic root of 3843121 is about 156.6371188176.

The spelling of 3843121 in words is "three million, eight hundred forty-three thousand, one hundred twenty-one".