3872489 has 4 divisors (see below), whose sum is σ = 3997440. Its totient is φ = 3747540.

The previous prime is 3872459. The next prime is 3872503. The reversal of 3872489 is 9842783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9842783 = 103 ⋅95561.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3872489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3872459) 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 3 ways as a sum of consecutive naturals, for example, 62429 + ... + 62490.

It is an arithmetic number, because the mean of its divisors is an integer number (999360).

Almost surely, 2^3872489 is an apocalyptic number.

It is an amenable number.

3872489 is a deficient number, since it is larger than the sum of its proper divisors (124951).

3872489 is a wasteful number, since it uses less digits than its factorization.

3872489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124950.

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

The square root of 3872489 is about 1967.8640705089. The cubic root of 3872489 is about 157.0350983777.

It can be divided in two parts, 38 and 72489, that added together give a palindrome (72527).

The spelling of 3872489 in words is "three million, eight hundred seventy-two thousand, four hundred eighty-nine".