2173234769 has 2 divisors, whose sum is σ = 2173234770. Its totient is φ = 2173234768.

The previous prime is 2173234753. The next prime is 2173234813. The reversal of 2173234769 is 9674323712.

It is an a-pointer prime, because the next prime (2173234813) can be obtained adding 2173234769 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1700737600 + 472497169 = 41240^2 + 21737^2 .

It is a cyclic number.

It is not a de Polignac number, because 2173234769 - 2⁴ = 2173234753 is a prime.

It is a super-2 number, since 2×2173234769² = 9445898722380966722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2173239769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086617384 + 1086617385.

It is an arithmetic number, because the mean of its divisors is an integer number (1086617385).

Almost surely, 2^2173234769 is an apocalyptic number.

It is an amenable number.

2173234769 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173234769 is an equidigital number, since it uses as much as digits as its factorization.

2173234769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 44.

The square root of 2173234769 is about 46617.9661611272. The cubic root of 2173234769 is about 1295.2955739211.

The spelling of 2173234769 in words is "two billion, one hundred seventy-three million, two hundred thirty-four thousand, seven hundred sixty-nine".