845804838 has 16 divisors (see below), whose sum is σ = 1695433536. Its totient is φ = 281297640.

The previous prime is 845804831. The next prime is 845804849. The reversal of 845804838 is 838408548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845804831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156448 + ... + 161763.

It is an arithmetic number, because the mean of its divisors is an integer number (105964596).

Almost surely, 2^845804838 is an apocalyptic number.

845804838 is an abundant number, since it is smaller than the sum of its proper divisors (849628698).

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

845804838 is a wasteful number, since it uses less digits than its factorization.

845804838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318659.

The product of its (nonzero) digits is 983040, while the sum is 48.

The square root of 845804838 is about 29082.7240471040. The cubic root of 845804838 is about 945.7072569987.

The spelling of 845804838 in words is "eight hundred forty-five million, eight hundred four thousand, eight hundred thirty-eight".