788289449 has 2 divisors, whose sum is σ = 788289450. Its totient is φ = 788289448.

The previous prime is 788289443. The next prime is 788289479. The reversal of 788289449 is 944982887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 767677849 + 20611600 = 27707^2 + 4540^2 .

It is a cyclic number.

It is not a de Polignac number, because 788289449 - 2¹² = 788285353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (788289443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394144724 + 394144725.

It is an arithmetic number, because the mean of its divisors is an integer number (394144725).

Almost surely, 2^788289449 is an apocalyptic number.

It is an amenable number.

788289449 is a deficient number, since it is larger than the sum of its proper divisors (1).

788289449 is an equidigital number, since it uses as much as digits as its factorization.

788289449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9289728, while the sum is 59.

The square root of 788289449 is about 28076.4928187265. The cubic root of 788289449 is about 923.7658531194.

The spelling of 788289449 in words is "seven hundred eighty-eight million, two hundred eighty-nine thousand, four hundred forty-nine".