845936385 has 16 divisors (see below), whose sum is σ = 1546855296. Its totient is φ = 386713728.

The previous prime is 845936381. The next prime is 845936417. The reversal of 845936385 is 583639548.

It is a happy number.

It is not a de Polignac number, because 845936385 - 2² = 845936381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (845936381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4028164 + ... + 4028373.

It is an arithmetic number, because the mean of its divisors is an integer number (96678456).

Almost surely, 2^845936385 is an apocalyptic number.

It is an amenable number.

845936385 is a deficient number, since it is larger than the sum of its proper divisors (700918911).

845936385 is a wasteful number, since it uses less digits than its factorization.

845936385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8056552.

The product of its digits is 3110400, while the sum is 51.

The square root of 845936385 is about 29084.9855595632. The cubic root of 845936385 is about 945.7562826912.

It can be divided in two parts, 8459 and 36385, that added together give a palindrome (44844).

The spelling of 845936385 in words is "eight hundred forty-five million, nine hundred thirty-six thousand, three hundred eighty-five".