845896680 has 96 divisors (see below), whose sum is σ = 2774514600. Its totient is φ = 223492608.

The previous prime is 845896669. The next prime is 845896703. The reversal of 845896680 is 86698548.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 579750084 + 266146596 = 24078^2 + 16314^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28462 + ... + 50018.

Almost surely, 2^845896680 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 845896680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387257300).

845896680 is an abundant number, since it is smaller than the sum of its proper divisors (1928617920).

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

845896680 is a wasteful number, since it uses less digits than its factorization.

845896680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21683 (or 21676 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The square root of 845896680 is about 29084.3029828806. The cubic root of 845896680 is about 945.7414857390.

The spelling of 845896680 in words is "eight hundred forty-five million, eight hundred ninety-six thousand, six hundred eighty".