853869089 has 4 divisors (see below), whose sum is σ = 890993856. Its totient is φ = 816744324.

The previous prime is 853869083. The next prime is 853869113. The reversal of 853869089 is 980968358.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 853869089 - 2²⁰ = 852820513 is a prime.

It is a super-2 number, since 2×853869089² = 1458184842299379842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (853869083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18562349 + ... + 18562394.

It is an arithmetic number, because the mean of its divisors is an integer number (222748464).

Almost surely, 2^853869089 is an apocalyptic number.

It is an amenable number.

853869089 is a deficient number, since it is larger than the sum of its proper divisors (37124767).

853869089 is a wasteful number, since it uses less digits than its factorization.

853869089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37124766.

The product of its (nonzero) digits is 3732480, while the sum is 56.

The square root of 853869089 is about 29221.0384654618. The cubic root of 853869089 is about 948.7033423509.

The spelling of 853869089 in words is "eight hundred fifty-three million, eight hundred sixty-nine thousand, eighty-nine".