4398487779 has 16 divisors (see below), whose sum is σ = 6777768960. Its totient is φ = 2485179840.

The previous prime is 4398487763. The next prime is 4398487781. The reversal of 4398487779 is 9777848934.

It is a happy number.

It is not a de Polignac number, because 4398487779 - 2⁴ = 4398487763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4398487729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1174827 + ... + 1178564.

It is an arithmetic number, because the mean of its divisors is an integer number (423610560).

Almost surely, 2^4398487779 is an apocalyptic number.

4398487779 is a deficient number, since it is larger than the sum of its proper divisors (2379281181).

4398487779 is a wasteful number, since it uses less digits than its factorization.

4398487779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353490.

The product of its digits is 85349376, while the sum is 66.

The square root of 4398487779 is about 66321.0960328612. The cubic root of 4398487779 is about 1638.4547932013.

The spelling of 4398487779 in words is "four billion, three hundred ninety-eight million, four hundred eighty-seven thousand, seven hundred seventy-nine".