755448779 has 2 divisors, whose sum is σ = 755448780. Its totient is φ = 755448778.

The previous prime is 755448769. The next prime is 755448781. The reversal of 755448779 is 977844557.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 755448779 - 2¹⁶ = 755383243 is a prime.

Together with 755448781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (755448709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377724389 + 377724390.

It is an arithmetic number, because the mean of its divisors is an integer number (377724390).

Almost surely, 2^755448779 is an apocalyptic number.

755448779 is a deficient number, since it is larger than the sum of its proper divisors (1).

755448779 is an equidigital number, since it uses as much as digits as its factorization.

755448779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9878400, while the sum is 56.

The square root of 755448779 is about 27485.4284849263. The cubic root of 755448779 is about 910.7552314321.

The spelling of 755448779 in words is "seven hundred fifty-five million, four hundred forty-eight thousand, seven hundred seventy-nine".