3823749 has 6 divisors (see below), whose sum is σ = 5523206. Its totient is φ = 2549160.

The previous prime is 3823747. The next prime is 3823753. The reversal of 3823749 is 9473283.

It can be written as a sum of positive squares in only one way, i.e., 3744225 + 79524 = 1935^2 + 282^2 .

It is not a de Polignac number, because 3823749 - 2¹ = 3823747 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3823747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212422 + ... + 212439.

Almost surely, 2^3823749 is an apocalyptic number.

It is an amenable number.

3823749 is a deficient number, since it is larger than the sum of its proper divisors (1699457).

3823749 is a wasteful number, since it uses less digits than its factorization.

3823749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424867 (or 424864 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 3823749 is about 1955.4408710058. The cubic root of 3823749 is about 156.3734887244.

The spelling of 3823749 in words is "three million, eight hundred twenty-three thousand, seven hundred forty-nine".