1718223 has 12 divisors (see below), whose sum is σ = 2481480. Its totient is φ = 1057056.

The previous prime is 1718219. The next prime is 1718251. The reversal of 1718223 is 3228171.

It is not a de Polignac number, because 1718223 - 2² = 1718219 is a prime.

1718223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1718193 and 1718202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1718203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1188 + ... + 2201.

It is an arithmetic number, because the mean of its divisors is an integer number (206790).

2^1718223 is an apocalyptic number.

1718223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1718223 is a deficient number, since it is larger than the sum of its proper divisors (763257).

1718223 is a wasteful number, since it uses less digits than its factorization.

1718223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418 (or 3405 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 1718223 is about 1310.8100548897. The cubic root of 1718223 is about 119.7732523714.

It can be divided in two parts, 17182 and 23, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 1718223 in words is "one million, seven hundred eighteen thousand, two hundred twenty-three".