847930020 has 144 divisors (see below), whose sum is σ = 2783485824. Its totient is φ = 188928000.

The previous prime is 847930019. The next prime is 847930021. The reversal of 847930020 is 20039748.

It is an interprime number because it is at equal distance from previous prime (847930019) and next prime (847930021).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847930021) 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, 705420 + ... + 706620.

Almost surely, 2^847930020 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 847930020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1391742912).

847930020 is an abundant number, since it is smaller than the sum of its proper divisors (1935555804).

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

847930020 is a wasteful number, since it uses less digits than its factorization.

847930020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 847930020 is about 29119.2379707986. The cubic root of 847930020 is about 946.4986606460.

Adding to 847930020 its reverse (20039748), we get a palindrome (867969768).

The spelling of 847930020 in words is "eight hundred forty-seven million, nine hundred thirty thousand, twenty".