9772344906 has 32 divisors (see below), whose sum is σ = 20708561088. Its totient is φ = 3063732480.

The previous prime is 9772344899. The next prime is 9772344913. The reversal of 9772344906 is 6094432779.

It is an interprime number because it is at equal distance from previous prime (9772344899) and next prime (9772344913).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120201 + ... + 184371.

It is an arithmetic number, because the mean of its divisors is an integer number (647142534).

Almost surely, 2^9772344906 is an apocalyptic number.

9772344906 is the 62522-nd centered pentagonal number.

9772344906 is an abundant number, since it is smaller than the sum of its proper divisors (10936216182).

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

9772344906 is a wasteful number, since it uses less digits than its factorization.

9772344906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65686.

The product of its (nonzero) digits is 2286144, while the sum is 51.

The square root of 9772344906 is about 98855.1713670054. The cubic root of 9772344906 is about 2137.9600983778.

The spelling of 9772344906 in words is "nine billion, seven hundred seventy-two million, three hundred forty-four thousand, nine hundred six".