845704560 has 160 divisors (see below), whose sum is σ = 2716826112. Its totient is φ = 217451520.

The previous prime is 845704537. The next prime is 845704633. The reversal of 845704560 is 65407548.

It is a Cunningham number, because it is equal to 29081²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1162917 + ... + 1163643.

Almost surely, 2^845704560 is an apocalyptic number.

845704560 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 845704560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1358413056).

845704560 is an abundant number, since it is smaller than the sum of its proper divisors (1871121552).

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

845704560 is a wasteful number, since it uses less digits than its factorization.

845704560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 845704560 is about 29080.9999828066. Note that the first 4 decimals coincide. The cubic root of 845704560 is about 945.6698814025.

The spelling of 845704560 in words is "eight hundred forty-five million, seven hundred four thousand, five hundred sixty".