8273947500 has 600 divisors, whose sum is σ = 33339952800. Its totient is φ = 1741824000.

The previous prime is 8273947489. The next prime is 8273947519. The reversal of 8273947500 is 57493728.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 199 ways as a sum of consecutive naturals, for example, 18427276 + ... + 18427724.

It is an arithmetic number, because the mean of its divisors is an integer number (55566588).

Almost surely, 2^8273947500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8273947500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16669976400).

8273947500 is an abundant number, since it is smaller than the sum of its proper divisors (25066005300).

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

8273947500 is a wasteful number, since it uses less digits than its factorization.

8273947500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 8273947500 is about 90961.2417461415. The cubic root of 8273947500 is about 2022.5732245829.

The spelling of 8273947500 in words is "eight billion, two hundred seventy-three million, nine hundred forty-seven thousand, five hundred".