9764591222 has 4 divisors (see below), whose sum is σ = 14646886836. Its totient is φ = 4882295610.

The previous prime is 9764591219. The next prime is 9764591237. The reversal of 9764591222 is 2221954679.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2221954679 = 7 ⋅317422097.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2441147804 + ... + 2441147807.

It is an arithmetic number, because the mean of its divisors is an integer number (3661721709).

Almost surely, 2^9764591222 is an apocalyptic number.

9764591222 is a deficient number, since it is larger than the sum of its proper divisors (4882295614).

9764591222 is a wasteful number, since it uses less digits than its factorization.

9764591222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4882295613.

The product of its digits is 544320, while the sum is 47.

The square root of 9764591222 is about 98815.9461929096. The cubic root of 9764591222 is about 2137.3945073024.

The spelling of 9764591222 in words is "nine billion, seven hundred sixty-four million, five hundred ninety-one thousand, two hundred twenty-two".