8772938213 has 24 divisors (see below), whose sum is σ = 10079521416. Its totient is φ = 7605811200.

The previous prime is 8772938203. The next prime is 8772938227. The reversal of 8772938213 is 3128392778.

It can be written as a sum of positive squares in 12 ways, for example, as 4250779204 + 4522159009 = 65198^2 + 67247^2 .

It is not a de Polignac number, because 8772938213 - 2⁶ = 8772938149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8772938203) 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, 1493903 + ... + 1499763.

It is an arithmetic number, because the mean of its divisors is an integer number (419980059).

Almost surely, 2^8772938213 is an apocalyptic number.

It is an amenable number.

8772938213 is a deficient number, since it is larger than the sum of its proper divisors (1306583203).

8772938213 is a wasteful number, since it uses less digits than its factorization.

8772938213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6425 (or 6412 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 50.

The square root of 8772938213 is about 93663.9643246003. The cubic root of 8772938213 is about 2062.4417438483.

The spelling of 8772938213 in words is "eight billion, seven hundred seventy-two million, nine hundred thirty-eight thousand, two hundred thirteen".