853889838 has 32 divisors (see below), whose sum is σ = 1809527040. Its totient is φ = 267696000.

The previous prime is 853889819. The next prime is 853889851. The reversal of 853889838 is 838988358.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227743 + ... + 231461.

It is an arithmetic number, because the mean of its divisors is an integer number (56547720).

Almost surely, 2^853889838 is an apocalyptic number.

853889838 is an abundant number, since it is smaller than the sum of its proper divisors (955637202).

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

853889838 is a wasteful number, since it uses less digits than its factorization.

853889838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5992.

The product of its digits is 13271040, while the sum is 60.

The square root of 853889838 is about 29221.3934985996. The cubic root of 853889838 is about 948.7110267788.

The spelling of 853889838 in words is "eight hundred fifty-three million, eight hundred eighty-nine thousand, eight hundred thirty-eight".