847049280 has 336 divisors, whose sum is σ = 3414954816. Its totient is φ = 175902720.

The previous prime is 847049261. The next prime is 847049341. The reversal of 847049280 is 82940748.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 516622 + ... + 518258.

It is an arithmetic number, because the mean of its divisors is an integer number (10163556).

Almost surely, 2^847049280 is an apocalyptic number.

847049280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 847049280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707477408).

847049280 is an abundant number, since it is smaller than the sum of its proper divisors (2567905536).

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

847049280 is a wasteful number, since it uses less digits than its factorization.

847049280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 847049280 is about 29104.1110498156. Note that the first 3 decimals coincide. The cubic root of 847049280 is about 946.1708395591.

The spelling of 847049280 in words is "eight hundred forty-seven million, forty-nine thousand, two hundred eighty".