2174426789 has 2 divisors, whose sum is σ = 2174426790. Its totient is φ = 2174426788.

The previous prime is 2174426783. The next prime is 2174426791. The reversal of 2174426789 is 9876244712.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1369740100 + 804686689 = 37010^2 + 28367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2174426789 is a prime.

Together with 2174426791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2174426783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087213394 + 1087213395.

It is an arithmetic number, because the mean of its divisors is an integer number (1087213395).

Almost surely, 2^2174426789 is an apocalyptic number.

It is an amenable number.

2174426789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2174426789 is an equidigital number, since it uses as much as digits as its factorization.

2174426789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 50.

The square root of 2174426789 is about 46630.7493935064. The cubic root of 2174426789 is about 1295.5323539874.

The spelling of 2174426789 in words is "two billion, one hundred seventy-four million, four hundred twenty-six thousand, seven hundred eighty-nine".