875779 has 2 divisors, whose sum is σ = 875780. Its totient is φ = 875778.

The previous prime is 875773. The next prime is 875783. The reversal of 875779 is 977578.

875779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 875779 - 2⁹ = 875267 is a prime.

875779 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (875773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437889 + 437890.

It is an arithmetic number, because the mean of its divisors is an integer number (437890).

2⁸⁷⁵⁷⁷⁹ is an apocalyptic number.

875779 is a deficient number, since it is larger than the sum of its proper divisors (1).

875779 is an equidigital number, since it uses as much as digits as its factorization.

875779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123480, while the sum is 43.

The square root of 875779 is about 935.8306470724. The cubic root of 875779 is about 95.6749349745.

It can be divided in two parts, 8757 and 79, that added together give a square (8836 = 94²).

The spelling of 875779 in words is "eight hundred seventy-five thousand, seven hundred seventy-nine".