853923845 has 8 divisors (see below), whose sum is σ = 1025678976. Its totient is φ = 682492176.

The previous prime is 853923841. The next prime is 853923857. The reversal of 853923845 is 548329358.

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

It is a cyclic number.

It is not a de Polignac number, because 853923845 - 2² = 853923841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 853923845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853923841) 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, 75017 + ... + 85646.

It is an arithmetic number, because the mean of its divisors is an integer number (128209872).

Almost surely, 2^853923845 is an apocalyptic number.

It is an amenable number.

853923845 is a deficient number, since it is larger than the sum of its proper divisors (171755131).

853923845 is a wasteful number, since it uses less digits than its factorization.

853923845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161731.

The product of its digits is 1036800, while the sum is 47.

The square root of 853923845 is about 29221.9753781294. The cubic root of 853923845 is about 948.7236210605.

The spelling of 853923845 in words is "eight hundred fifty-three million, nine hundred twenty-three thousand, eight hundred forty-five".