845689632 has 48 divisors (see below), whose sum is σ = 2221440480. Its totient is φ = 281705472.

The previous prime is 845689631. The next prime is 845689687. The reversal of 845689632 is 236986548.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (845689631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253608 + ... + 256920.

It is an arithmetic number, because the mean of its divisors is an integer number (46280010).

Almost surely, 2^845689632 is an apocalyptic number.

It is an amenable number.

845689632 is an abundant number, since it is smaller than the sum of its proper divisors (1375750848).

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

845689632 is a wasteful number, since it uses less digits than its factorization.

845689632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5985 (or 5977 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 845689632 is about 29080.7433192482. The cubic root of 845689632 is about 945.6643171887.

The spelling of 845689632 in words is "eight hundred forty-five million, six hundred eighty-nine thousand, six hundred thirty-two".