847448640 has 336 divisors, whose sum is σ = 3252337920. Its totient is φ = 201277440.

The previous prime is 847448627. The next prime is 847448647. The reversal of 847448640 is 46844748.

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

It is not an unprimeable number, because it can be changed into a prime (847448647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 929785 + ... + 930695.

Almost surely, 2^847448640 is an apocalyptic number.

847448640 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 847448640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1626168960).

847448640 is an abundant number, since it is smaller than the sum of its proper divisors (2404889280).

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

847448640 is a wasteful number, since it uses less digits than its factorization.

847448640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 957 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 45.

The square root of 847448640 is about 29110.9711277381. The cubic root of 847448640 is about 946.3195138756.

The spelling of 847448640 in words is "eight hundred forty-seven million, four hundred forty-eight thousand, six hundred forty".