3813849 has 24 divisors (see below), whose sum is σ = 6099912. Its totient is φ = 2280960.

The previous prime is 3813847. The next prime is 3813869. The reversal of 3813849 is 9483183.

It can be written as a sum of positive squares in 4 ways, for example, as 230400 + 3583449 = 480^2 + 1893^2 .

It is not a de Polignac number, because 3813849 - 2¹ = 3813847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3889 + ... + 4769.

It is an arithmetic number, because the mean of its divisors is an integer number (254163).

Almost surely, 2^3813849 is an apocalyptic number.

3813849 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3813849 is a deficient number, since it is larger than the sum of its proper divisors (2286063).

3813849 is a wasteful number, since it uses less digits than its factorization.

3813849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 934 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 3813849 is about 1952.9078319265. The cubic root of 3813849 is about 156.2384174881.

The spelling of 3813849 in words is "three million, eight hundred thirteen thousand, eight hundred forty-nine".