853938919 has 8 divisors (see below), whose sum is σ = 881377920. Its totient is φ = 826932216.

The previous prime is 853938881. The next prime is 853938929. The reversal of 853938919 is 919839358.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853938919 is a prime.

It is a super-2 number, since 2×853938919² = 1458423354765777122, which contains 22 as substring.

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 853938919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853938929) 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, 104059 + ... + 111964.

It is an arithmetic number, because the mean of its divisors is an integer number (110172240).

Almost surely, 2^853938919 is an apocalyptic number.

853938919 is a deficient number, since it is larger than the sum of its proper divisors (27439001).

853938919 is a wasteful number, since it uses less digits than its factorization.

853938919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216149.

The product of its digits is 2099520, while the sum is 55.

The square root of 853938919 is about 29222.2332993219. The cubic root of 853938919 is about 948.7292035160.

The spelling of 853938919 in words is "eight hundred fifty-three million, nine hundred thirty-eight thousand, nine hundred nineteen".