846220986 has 128 divisors (see below), whose sum is σ = 2115590400. Its totient is φ = 248935680.

The previous prime is 846220979. The next prime is 846220987. The reversal of 846220986 is 689022648.

846220986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (846220987) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4010421 + ... + 4010631.

It is an arithmetic number, because the mean of its divisors is an integer number (16528050).

Almost surely, 2^846220986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 846220986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1057795200).

846220986 is an abundant number, since it is smaller than the sum of its proper divisors (1269369414).

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

846220986 is a wasteful number, since it uses less digits than its factorization.

846220986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 846220986 is about 29089.8777240469. The cubic root of 846220986 is about 945.8623320384.

The spelling of 846220986 in words is "eight hundred forty-six million, two hundred twenty thousand, nine hundred eighty-six".