4121779 has 2 divisors, whose sum is σ = 4121780. Its totient is φ = 4121778.

The previous prime is 4121753. The next prime is 4121783. The reversal of 4121779 is 9771214.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4121779 - 2¹⁵ = 4089011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4121779.

It is not a weakly prime, because it can be changed into another prime (4121749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060889 + 2060890.

It is an arithmetic number, because the mean of its divisors is an integer number (2060890).

Almost surely, 2^4121779 is an apocalyptic number.

4121779 is a deficient number, since it is larger than the sum of its proper divisors (1).

4121779 is an equidigital number, since it uses as much as digits as its factorization.

4121779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 31.

The square root of 4121779 is about 2030.2164909191. The cubic root of 4121779 is about 160.3349623246.

It can be divided in two parts, 4121 and 779, that added together give a square (4900 = 70²).

The spelling of 4121779 in words is "four million, one hundred twenty-one thousand, seven hundred seventy-nine".