845236872 has 48 divisors (see below), whose sum is σ = 2423844540. Its totient is φ = 265171968.

The previous prime is 845236859. The next prime is 845236883. The reversal of 845236872 is 278632548.

It can be written as a sum of positive squares in 2 ways, for example, as 755480196 + 89756676 = 27486^2 + 9474^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 344053 + ... + 346500.

Almost surely, 2^845236872 is an apocalyptic number.

It is an amenable number.

845236872 is an abundant number, since it is smaller than the sum of its proper divisors (1578607668).

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

845236872 is a wasteful number, since it uses less digits than its factorization.

845236872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690582 (or 690575 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 845236872 is about 29072.9577442681. The cubic root of 845236872 is about 945.4955257900.

The spelling of 845236872 in words is "eight hundred forty-five million, two hundred thirty-six thousand, eight hundred seventy-two".