1011779 has 2 divisors, whose sum is σ = 1011780. Its totient is φ = 1011778.

The previous prime is 1011763. The next prime is 1011797. The reversal of 1011779 is 9771101.

1011779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (1011797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011779 - 2⁴ = 1011763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505889 + 505890.

It is an arithmetic number, because the mean of its divisors is an integer number (505890).

2^1011779 is an apocalyptic number.

1011779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011779 is an equidigital number, since it uses as much as digits as its factorization.

1011779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441, while the sum is 26.

The square root of 1011779 is about 1005.8722582913. The cubic root of 1011779 is about 100.3911017336.

Subtracting from 1011779 its sum of digits (26), we obtain a triangular number (1011753 = T₁₄₂₂).

The spelling of 1011779 in words is "one million, eleven thousand, seven hundred seventy-nine".