8222213693 has 4 divisors (see below), whose sum is σ = 8705873340. Its totient is φ = 7738554048.

The previous prime is 8222213683. The next prime is 8222213737. The reversal of 8222213693 is 3963122228.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6003615289 + 2218598404 = 77483^2 + 47102^2 .

It is a cyclic number.

It is not a de Polignac number, because 8222213693 - 2²⁸ = 7953778237 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 (8222213663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241829798 + ... + 241829831.

It is an arithmetic number, because the mean of its divisors is an integer number (2176468335).

Almost surely, 2^8222213693 is an apocalyptic number.

It is an amenable number.

8222213693 is a deficient number, since it is larger than the sum of its proper divisors (483659647).

8222213693 is a wasteful number, since it uses less digits than its factorization.

8222213693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483659646.

The product of its digits is 62208, while the sum is 38.

The square root of 8222213693 is about 90676.4230271574. The cubic root of 8222213693 is about 2018.3489509333.

The spelling of 8222213693 in words is "eight billion, two hundred twenty-two million, two hundred thirteen thousand, six hundred ninety-three".