853163443 has 4 divisors (see below), whose sum is σ = 930723768. Its totient is φ = 775603120.

The previous prime is 853163417. The next prime is 853163453. The reversal of 853163443 is 344361358.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853163443 is a prime.

It is a super-2 number, since 2×853163443² = 1455775720943228498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (853163413) 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, 38780146 + ... + 38780167.

It is an arithmetic number, because the mean of its divisors is an integer number (232680942).

Almost surely, 2^853163443 is an apocalyptic number.

853163443 is a deficient number, since it is larger than the sum of its proper divisors (77560325).

853163443 is a wasteful number, since it uses less digits than its factorization.

853163443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77560324.

The product of its digits is 103680, while the sum is 37.

The square root of 853163443 is about 29208.9616898650. The cubic root of 853163443 is about 948.4419309999.

The spelling of 853163443 in words is "eight hundred fifty-three million, one hundred sixty-three thousand, four hundred forty-three".