1722275 has 6 divisors (see below), whose sum is σ = 2135652. Its totient is φ = 1377800.

The previous prime is 1722251. The next prime is 1722283. The reversal of 1722275 is 5722271.

It is not a de Polignac number, because 1722275 - 2⁶ = 1722211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 34421 + ... + 34470.

It is an arithmetic number, because the mean of its divisors is an integer number (355942).

2^1722275 is an apocalyptic number.

1722275 is a deficient number, since it is larger than the sum of its proper divisors (413377).

1722275 is an equidigital number, since it uses as much as digits as its factorization.

1722275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68901 (or 68896 counting only the distinct ones).

The product of its digits is 1960, while the sum is 26.

The square root of 1722275 is about 1312.3547538680. The cubic root of 1722275 is about 119.8673302287.

The spelling of 1722275 in words is "one million, seven hundred twenty-two thousand, two hundred seventy-five".