853989357 has 16 divisors (see below), whose sum is σ = 1228893120. Its totient is φ = 524395392.

The previous prime is 853989347. The next prime is 853989401. The reversal of 853989357 is 753989358.

It is not a de Polignac number, because 853989357 - 2⁶ = 853989293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 853989297 and 853989306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853989307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5232 + ... + 41657.

It is an arithmetic number, because the mean of its divisors is an integer number (76805820).

Almost surely, 2^853989357 is an apocalyptic number.

It is an amenable number.

853989357 is a deficient number, since it is larger than the sum of its proper divisors (374903763).

853989357 is a wasteful number, since it uses less digits than its factorization.

853989357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47372.

The product of its digits is 8164800, while the sum is 57.

The square root of 853989357 is about 29223.0962938563. The cubic root of 853989357 is about 948.7478820813.

Subtracting from 853989357 its reverse (753989358), we obtain a palindrome (99999999).

The spelling of 853989357 in words is "eight hundred fifty-three million, nine hundred eighty-nine thousand, three hundred fifty-seven".