3648287 has 4 divisors (see below), whose sum is σ = 3774120. Its totient is φ = 3522456.

The previous prime is 3648277. The next prime is 3648289. The reversal of 3648287 is 7828463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7828463 = 29 ⋅269947.

It is not a de Polignac number, because 3648287 - 2⁸ = 3648031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3648287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648289) 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, 62873 + ... + 62930.

It is an arithmetic number, because the mean of its divisors is an integer number (943530).

Almost surely, 2^3648287 is an apocalyptic number.

3648287 is a deficient number, since it is larger than the sum of its proper divisors (125833).

3648287 is a wasteful number, since it uses less digits than its factorization.

3648287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125832.

The product of its digits is 64512, while the sum is 38.

The square root of 3648287 is about 1910.0489522523. The cubic root of 3648287 is about 153.9440821329.

The spelling of 3648287 in words is "three million, six hundred forty-eight thousand, two hundred eighty-seven".