3869249 has 4 divisors (see below), whose sum is σ = 3879300. Its totient is φ = 3859200.

The previous prime is 3869231. The next prime is 3869263. The reversal of 3869249 is 9429683.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9429683 = 2663 ⋅3541.

It can be written as a sum of positive squares in 2 ways, for example, as 2380849 + 1488400 = 1543^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 3869249 - 2¹² = 3865153 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3¹¹ + 8⁷ + 6⁵ + 9⁶ + 2¹⁹ + 4 + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3869849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4424 + ... + 5225.

It is an arithmetic number, because the mean of its divisors is an integer number (969825).

Almost surely, 2^3869249 is an apocalyptic number.

It is an amenable number.

3869249 is a deficient number, since it is larger than the sum of its proper divisors (10051).

3869249 is an equidigital number, since it uses as much as digits as its factorization.

3869249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050.

The product of its digits is 93312, while the sum is 41.

The square root of 3869249 is about 1967.0406706522. The cubic root of 3869249 is about 156.9912905767.

The spelling of 3869249 in words is "three million, eight hundred sixty-nine thousand, two hundred forty-nine".