4198779 has 24 divisors (see below), whose sum is σ = 6918912. Its totient is φ = 2430720.

The previous prime is 4198763. The next prime is 4198781. The reversal of 4198779 is 9778914.

It is not a de Polignac number, because 4198779 - 2⁴ = 4198763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4198709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 934 + ... + 3044.

It is an arithmetic number, because the mean of its divisors is an integer number (288288).

Almost surely, 2^4198779 is an apocalyptic number.

4198779 is a deficient number, since it is larger than the sum of its proper divisors (2720133).

4198779 is a wasteful number, since it uses less digits than its factorization.

4198779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147 (or 2144 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 4198779 is about 2049.0922380410. The cubic root of 4198779 is about 161.3272281952.

The spelling of 4198779 in words is "four million, one hundred ninety-eight thousand, seven hundred seventy-nine".