3849241421 has 2 divisors, whose sum is σ = 3849241422. Its totient is φ = 3849241420.

The previous prime is 3849241381. The next prime is 3849241423. The reversal of 3849241421 is 1241429483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1988268100 + 1860973321 = 44590^2 + 43139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3849241421 is a prime.

Together with 3849241423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3849241423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1924620710 + 1924620711.

It is an arithmetic number, because the mean of its divisors is an integer number (1924620711).

Almost surely, 2^3849241421 is an apocalyptic number.

It is an amenable number.

3849241421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3849241421 is an equidigital number, since it uses as much as digits as its factorization.

3849241421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 3849241421 is about 62042.2551250356. The cubic root of 3849241421 is about 1567.2022632657.

The spelling of 3849241421 in words is "three billion, eight hundred forty-nine million, two hundred forty-one thousand, four hundred twenty-one".