1722563 has 2 divisors, whose sum is σ = 1722564. Its totient is φ = 1722562.

The previous prime is 1722557. The next prime is 1722587. The reversal of 1722563 is 3652271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1722563 - 2⁸ = 1722307 is a prime.

It is a super-3 number, since 3×1722563³ = 15333687150948922641, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1722163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861281 + 861282.

It is an arithmetic number, because the mean of its divisors is an integer number (861282).

2^1722563 is an apocalyptic number.

1722563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1722563 is an equidigital number, since it uses as much as digits as its factorization.

1722563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 26.

The square root of 1722563 is about 1312.4644757097. The cubic root of 1722563 is about 119.8740112885.

The spelling of 1722563 in words is "one million, seven hundred twenty-two thousand, five hundred sixty-three".