71792789 has 2 divisors, whose sum is σ = 71792790. Its totient is φ = 71792788.

The previous prime is 71792771. The next prime is 71792801. The reversal of 71792789 is 98729717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71537764 + 255025 = 8458^2 + 505^2 .

It is a cyclic number.

It is not a de Polignac number, because 71792789 - 2²⁰ = 70744213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71791789) 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, 35896394 + 35896395.

It is an arithmetic number, because the mean of its divisors is an integer number (35896395).

Almost surely, 2^71792789 is an apocalyptic number.

It is an amenable number.

71792789 is a deficient number, since it is larger than the sum of its proper divisors (1).

71792789 is an equidigital number, since it uses as much as digits as its factorization.

71792789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 50.

The square root of 71792789 is about 8473.0625514037. The cubic root of 71792789 is about 415.6172920273.

The spelling of 71792789 in words is "seventy-one million, seven hundred ninety-two thousand, seven hundred eighty-nine".