3805949 has 4 divisors (see below), whose sum is σ = 4349664. Its totient is φ = 3262236.

The previous prime is 3805933. The next prime is 3805951. The reversal of 3805949 is 9495083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3805949 - 2⁴ = 3805933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3805979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271847 + ... + 271860.

It is an arithmetic number, because the mean of its divisors is an integer number (1087416).

Almost surely, 2^3805949 is an apocalyptic number.

It is an amenable number.

3805949 is a deficient number, since it is larger than the sum of its proper divisors (543715).

3805949 is an equidigital number, since it uses as much as digits as its factorization.

3805949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543714.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 3805949 is about 1950.8841585292. The cubic root of 3805949 is about 156.1304655904.

The spelling of 3805949 in words is "three million, eight hundred five thousand, nine hundred forty-nine".