79282289 has 2 divisors, whose sum is σ = 79282290. Its totient is φ = 79282288.

The previous prime is 79282243. The next prime is 79282303. The reversal of 79282289 is 98228297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71487025 + 7795264 = 8455^2 + 2792^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79282289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79282589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39641144 + 39641145.

It is an arithmetic number, because the mean of its divisors is an integer number (39641145).

Almost surely, 2^79282289 is an apocalyptic number.

It is an amenable number.

79282289 is a deficient number, since it is larger than the sum of its proper divisors (1).

79282289 is an equidigital number, since it uses as much as digits as its factorization.

79282289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 47.

The square root of 79282289 is about 8904.0602536146. The cubic root of 79282289 is about 429.5945140912.

The spelling of 79282289 in words is "seventy-nine million, two hundred eighty-two thousand, two hundred eighty-nine".