3887249 has 4 divisors (see below), whose sum is σ = 3894564. Its totient is φ = 3879936.

The previous prime is 3887239. The next prime is 3887281. The reversal of 3887249 is 9427883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3214849 + 672400 = 1793^2 + 820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3887249 is a prime.

It is a super-2 number, since 2×3887249² = 30221409576002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3887239) 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, 2792 + ... + 3945.

It is an arithmetic number, because the mean of its divisors is an integer number (973641).

Almost surely, 2^3887249 is an apocalyptic number.

It is an amenable number.

3887249 is a deficient number, since it is larger than the sum of its proper divisors (7315).

3887249 is an equidigital number, since it uses as much as digits as its factorization.

3887249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7314.

The product of its digits is 96768, while the sum is 41.

The square root of 3887249 is about 1971.6107628028. The cubic root of 3887249 is about 157.2343586344.

The spelling of 3887249 in words is "three million, eight hundred eighty-seven thousand, two hundred forty-nine".