1720075223 has 2 divisors, whose sum is σ = 1720075224. Its totient is φ = 1720075222.

The previous prime is 1720075213. The next prime is 1720075229. The reversal of 1720075223 is 3225700271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1720075223 - 2³⁰ = 646333399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1720075229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 860037611 + 860037612.

It is an arithmetic number, because the mean of its divisors is an integer number (860037612).

Almost surely, 2^1720075223 is an apocalyptic number.

1720075223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1720075223 is an equidigital number, since it uses as much as digits as its factorization.

1720075223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 1720075223 is about 41473.7895905354. The cubic root of 1720075223 is about 1198.1627494071.

Adding to 1720075223 its reverse (3225700271), we get a palindrome (4945775494).

The spelling of 1720075223 in words is "one billion, seven hundred twenty million, seventy-five thousand, two hundred twenty-three".