845902864 has 20 divisors (see below), whose sum is σ = 1735345404. Its totient is φ = 398071808.

The previous prime is 845902861. The next prime is 845902873. The reversal of 845902864 is 468209548.

It can be written as a sum of positive squares in 2 ways, for example, as 321126400 + 524776464 = 17920^2 + 22908^2 .

It is not an unprimeable number, because it can be changed into a prime (845902861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1554697 + ... + 1555240.

Almost surely, 2^845902864 is an apocalyptic number.

It is an amenable number.

845902864 is an abundant number, since it is smaller than the sum of its proper divisors (889442540).

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

845902864 is a wasteful number, since it uses less digits than its factorization.

845902864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109962 (or 3109956 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 845902864 is about 29084.4092943281. The cubic root of 845902864 is about 945.7437903747.

The spelling of 845902864 in words is "eight hundred forty-five million, nine hundred two thousand, eight hundred sixty-four".