9947281002 has 16 divisors (see below), whose sum is σ = 19901052000. Its totient is φ = 3314678672.

The previous prime is 9947280977. The next prime is 9947281007. The reversal of 9947281002 is 2001827499.

It is not an unprimeable number, because it can be changed into a prime (9947281007) 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, 250377 + ... + 287372.

It is an arithmetic number, because the mean of its divisors is an integer number (1243815750).

Almost surely, 2^9947281002 is an apocalyptic number.

9947281002 is an abundant number, since it is smaller than the sum of its proper divisors (9953770998).

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

9947281002 is a wasteful number, since it uses less digits than its factorization.

9947281002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540837.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 9947281002 is about 99736.0566796181. The cubic root of 9947281002 is about 2150.6420294238.

The spelling of 9947281002 in words is "nine billion, nine hundred forty-seven million, two hundred eighty-one thousand, two".