4243779 has 8 divisors (see below), whose sum is σ = 6287120. Its totient is φ = 2829168.

The previous prime is 4243747. The next prime is 4243781. The reversal of 4243779 is 9773424.

It is not a de Polignac number, because 4243779 - 2⁵ = 4243747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4243279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78562 + ... + 78615.

It is an arithmetic number, because the mean of its divisors is an integer number (785890).

Almost surely, 2^4243779 is an apocalyptic number.

4243779 is a deficient number, since it is larger than the sum of its proper divisors (2043341).

4243779 is a wasteful number, since it uses less digits than its factorization.

4243779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157186 (or 157180 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 4243779 is about 2060.0434461438. The cubic root of 4243779 is about 161.9015176466.

The spelling of 4243779 in words is "four million, two hundred forty-three thousand, seven hundred seventy-nine".