3228287 has 4 divisors (see below), whose sum is σ = 3315576. Its totient is φ = 3141000.

The previous prime is 3228259. The next prime is 3228293. The reversal of 3228287 is 7828223.

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

It is a cyclic number.

It is not a de Polignac number, because 3228287 - 2⁶ = 3228223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3228227) 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, 43589 + ... + 43662.

It is an arithmetic number, because the mean of its divisors is an integer number (828894).

Almost surely, 2^3228287 is an apocalyptic number.

3228287 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3228287 is a deficient number, since it is larger than the sum of its proper divisors (87289).

3228287 is an equidigital number, since it uses as much as digits as its factorization.

3228287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87288.

The product of its digits is 10752, while the sum is 32.

The square root of 3228287 is about 1796.7434430102. The cubic root of 3228287 is about 147.7941959301.

The spelling of 3228287 in words is "three million, two hundred twenty-eight thousand, two hundred eighty-seven".