2279785197 has 16 divisors (see below), whose sum is σ = 3115300608. Its totient is φ = 1482097920.

The previous prime is 2279785171. The next prime is 2279785201. The reversal of 2279785197 is 7915879722.

It is not a de Polignac number, because 2279785197 - 2⁶ = 2279785133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279785127) 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 15 ways as a sum of consecutive naturals, for example, 508588 + ... + 513050.

It is an arithmetic number, because the mean of its divisors is an integer number (194706288).

Almost surely, 2^2279785197 is an apocalyptic number.

It is an amenable number.

2279785197 is a deficient number, since it is larger than the sum of its proper divisors (835515411).

2279785197 is a wasteful number, since it uses less digits than its factorization.

2279785197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8660.

The product of its digits is 4445280, while the sum is 57.

The square root of 2279785197 is about 47747.0962153721. The cubic root of 2279785197 is about 1316.1275388522.

The spelling of 2279785197 in words is "two billion, two hundred seventy-nine million, seven hundred eighty-five thousand, one hundred ninety-seven".