9909674772 has 24 divisors (see below), whose sum is σ = 23148844992. Its totient is φ = 3299472000.

The previous prime is 9909674771. The next prime is 9909674773. The reversal of 9909674772 is 2774769099.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9909674771) and next prime (9909674773).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9909674771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458104 + ... + 479247.

It is an arithmetic number, because the mean of its divisors is an integer number (964535208).

Almost surely, 2^9909674772 is an apocalyptic number.

It is an amenable number.

9909674772 is an abundant number, since it is smaller than the sum of its proper divisors (13239170220).

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

9909674772 is a wasteful number, since it uses less digits than its factorization.

9909674772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938239 (or 938237 counting only the distinct ones).

The product of its (nonzero) digits is 12002256, while the sum is 60.

The square root of 9909674772 is about 99547.3493971587. The cubic root of 9909674772 is about 2147.9284009786.

The spelling of 9909674772 in words is "nine billion, nine hundred nine million, six hundred seventy-four thousand, seven hundred seventy-two".