1723225 has 24 divisors (see below), whose sum is σ = 2509760. Its totient is φ = 1149120.

The previous prime is 1723223. The next prime is 1723231. The reversal of 1723225 is 5223271.

It is not a de Polignac number, because 1723225 - 2¹ = 1723223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1723196 and 1723205.

It is not an unprimeable number, because it can be changed into a prime (1723223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7411 + ... + 7639.

2^1723225 is an apocalyptic number.

It is an amenable number.

1723225 is a deficient number, since it is larger than the sum of its proper divisors (786535).

1723225 is a wasteful number, since it uses less digits than its factorization.

1723225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 284 counting only the distinct ones).

The product of its digits is 840, while the sum is 22.

The square root of 1723225 is about 1312.7166487860. The cubic root of 1723225 is about 119.8893656242.

Adding to 1723225 its reverse (5223271), we get a palindrome (6946496).

The spelling of 1723225 in words is "one million, seven hundred twenty-three thousand, two hundred twenty-five".