9722873636 has 12 divisors (see below), whose sum is σ = 19445747328. Its totient is φ = 4166945832.

The previous prime is 9722873623. The next prime is 9722873647. The reversal of 9722873636 is 6363782279.

9722873636 is an admirable number.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173622716 + ... + 173622771.

It is an arithmetic number, because the mean of its divisors is an integer number (1620478944).

Almost surely, 2^9722873636 is an apocalyptic number.

It is an amenable number.

9722873636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9722873636 is a wasteful number, since it uses less digits than its factorization.

9722873636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347245498 (or 347245496 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 53.

The square root of 9722873636 is about 98604.6329337522. The cubic root of 9722873636 is about 2134.3462750714.

The spelling of 9722873636 in words is "nine billion, seven hundred twenty-two million, eight hundred seventy-three thousand, six hundred thirty-six".