4155779 has 2 divisors, whose sum is σ = 4155780. Its totient is φ = 4155778.

The previous prime is 4155763. The next prime is 4155791. The reversal of 4155779 is 9775514.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4155779 - 2⁴ = 4155763 is a prime.

It is not a weakly prime, because it can be changed into another prime (4155079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2077889 + 2077890.

It is an arithmetic number, because the mean of its divisors is an integer number (2077890).

Almost surely, 2^4155779 is an apocalyptic number.

4155779 is a deficient number, since it is larger than the sum of its proper divisors (1).

4155779 is an equidigital number, since it uses as much as digits as its factorization.

4155779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44100, while the sum is 38.

The square root of 4155779 is about 2038.5727850631. The cubic root of 4155779 is about 160.7746161552.

The spelling of 4155779 in words is "four million, one hundred fifty-five thousand, seven hundred seventy-nine".