3885749 has 6 divisors (see below), whose sum is σ = 4520214. Its totient is φ = 3330600.

The previous prime is 3885743. The next prime is 3885751. The reversal of 3885749 is 9475883.

It can be written as a sum of positive squares in only one way, i.e., 3678724 + 207025 = 1918^2 + 455^2 .

It is not a de Polignac number, because 3885749 - 2⁴ = 3885733 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 (3885743) 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 5 ways as a sum of consecutive naturals, for example, 39602 + ... + 39699.

It is an arithmetic number, because the mean of its divisors is an integer number (753369).

Almost surely, 2^3885749 is an apocalyptic number.

It is an amenable number.

3885749 is a deficient number, since it is larger than the sum of its proper divisors (634465).

3885749 is an equidigital number, since it uses as much as digits as its factorization.

3885749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79315 (or 79308 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 3885749 is about 1971.2303264713. The cubic root of 3885749 is about 157.2141316580.

The spelling of 3885749 in words is "three million, eight hundred eighty-five thousand, seven hundred forty-nine".