853905838 has 8 divisors (see below), whose sum is σ = 1281308688. Its totient is φ = 426802944.

The previous prime is 853905827. The next prime is 853905839. The reversal of 853905838 is 838509358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 853905791 and 853905800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853905839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67731 + ... + 79342.

It is an arithmetic number, because the mean of its divisors is an integer number (160163586).

Almost surely, 2^853905838 is an apocalyptic number.

853905838 is a deficient number, since it is larger than the sum of its proper divisors (427402850).

853905838 is a wasteful number, since it uses less digits than its factorization.

853905838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149978.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 853905838 is about 29221.6672693397. The cubic root of 853905838 is about 948.7169523213.

The spelling of 853905838 in words is "eight hundred fifty-three million, nine hundred five thousand, eight hundred thirty-eight".