8779214197 has 12 divisors (see below), whose sum is σ = 9515242380. Its totient is φ = 8099836056.

The previous prime is 8779214189. The next prime is 8779214201. The reversal of 8779214197 is 7914129778.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 323676081 + 8455538116 = 17991^2 + 91954^2 .

It is not a de Polignac number, because 8779214197 - 2³ = 8779214189 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 (8779214117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4390804 + ... + 4392802.

It is an arithmetic number, because the mean of its divisors is an integer number (792936865).

Almost surely, 2^8779214197 is an apocalyptic number.

It is an amenable number.

8779214197 is a deficient number, since it is larger than the sum of its proper divisors (736028183).

8779214197 is an frugal number, since it uses more digits than its factorization.

8779214197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037 (or 2012 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 55.

The square root of 8779214197 is about 93697.4609954827. The cubic root of 8779214197 is about 2062.9334364339.

The spelling of 8779214197 in words is "eight billion, seven hundred seventy-nine million, two hundred fourteen thousand, one hundred ninety-seven".