4122779 has 2 divisors, whose sum is σ = 4122780. Its totient is φ = 4122778.

The previous prime is 4122751. The next prime is 4122827. The reversal of 4122779 is 9772214.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4122779 is a prime.

It is not a weakly prime, because it can be changed into another prime (4122709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2061389 + 2061390.

It is an arithmetic number, because the mean of its divisors is an integer number (2061390).

Almost surely, 2^4122779 is an apocalyptic number.

4122779 is a deficient number, since it is larger than the sum of its proper divisors (1).

4122779 is an equidigital number, since it uses as much as digits as its factorization.

4122779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 4122779 is about 2030.4627551374. The cubic root of 4122779 is about 160.3479277616.

The spelling of 4122779 in words is "four million, one hundred twenty-two thousand, seven hundred seventy-nine".