3849943 has 2 divisors, whose sum is σ = 3849944. Its totient is φ = 3849942.

The previous prime is 3849929. The next prime is 3849949. The reversal of 3849943 is 3499483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3849943 - 2¹³ = 3841751 is a prime.

It is a super-2 number, since 2×3849943² = 29644122206498, which contains 22 as substring.

3849943 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3849896 and 3849905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3849949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1924971 + 1924972.

It is an arithmetic number, because the mean of its divisors is an integer number (1924972).

Almost surely, 2^3849943 is an apocalyptic number.

3849943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3849943 is an equidigital number, since it uses as much as digits as its factorization.

3849943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 40.

The square root of 3849943 is about 1962.1271620361. The cubic root of 3849943 is about 156.7297472450.

The spelling of 3849943 in words is "three million, eight hundred forty-nine thousand, nine hundred forty-three".