9047247820 has 48 divisors (see below), whose sum is σ = 20641834080. Its totient is φ = 3310949376.

The previous prime is 9047247809. The next prime is 9047247829. The reversal of 9047247820 is 287427409.

It is not an unprimeable number, because it can be changed into a prime (9047247829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124590 + ... + 183349.

It is an arithmetic number, because the mean of its divisors is an integer number (430038210).

Almost surely, 2^9047247820 is an apocalyptic number.

It is an amenable number.

9047247820 is an abundant number, since it is smaller than the sum of its proper divisors (11594586260).

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

9047247820 is a wasteful number, since it uses less digits than its factorization.

9047247820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308074 (or 308072 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 9047247820 is about 95117.0217153586. The cubic root of 9047247820 is about 2083.7174506384.

The spelling of 9047247820 in words is "nine billion, forty-seven million, two hundred forty-seven thousand, eight hundred twenty".