4399279879 has 4 divisors (see below), whose sum is σ = 4448710080. Its totient is φ = 4349849680.

The previous prime is 4399279877. The next prime is 4399279883. The reversal of 4399279879 is 9789729934.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4399279879 - 2¹ = 4399279877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399279877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24714967 + ... + 24715144.

It is an arithmetic number, because the mean of its divisors is an integer number (1112177520).

Almost surely, 2^4399279879 is an apocalyptic number.

4399279879 is a deficient number, since it is larger than the sum of its proper divisors (49430201).

4399279879 is an equidigital number, since it uses as much as digits as its factorization.

4399279879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49430200.

The product of its digits is 61725888, while the sum is 67.

The square root of 4399279879 is about 66327.0674687190. The cubic root of 4399279879 is about 1638.5531408008.

The spelling of 4399279879 in words is "four billion, three hundred ninety-nine million, two hundred seventy-nine thousand, eight hundred seventy-nine".