3228718 has 4 divisors (see below), whose sum is σ = 4843080. Its totient is φ = 1614358.

The previous prime is 3228713. The next prime is 3228733. The reversal of 3228718 is 8178223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8178223 = 443 ⋅18461.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3228718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3228713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 807178 + ... + 807181.

It is an arithmetic number, because the mean of its divisors is an integer number (1210770).

Almost surely, 2^3228718 is an apocalyptic number.

3228718 is a deficient number, since it is larger than the sum of its proper divisors (1614362).

3228718 is a wasteful number, since it uses less digits than its factorization.

3228718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614361.

The product of its digits is 5376, while the sum is 31.

The square root of 3228718 is about 1796.8633782233. The cubic root of 3228718 is about 147.8007728406.

The spelling of 3228718 in words is "three million, two hundred twenty-eight thousand, seven hundred eighteen".