989357 has 4 divisors (see below), whose sum is σ = 992796. Its totient is φ = 985920.

The previous prime is 989353. The next prime is 989377. The reversal of 989357 is 753989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 753989 = 499 ⋅1511.

It can be written as a sum of positive squares in 2 ways, for example, as 17161 + 972196 = 131^2 + 986^2 .

It is a cyclic number.

It is not a de Polignac number, because 989357 - 2² = 989353 is a prime.

It is a super-3 number, since 3×989357³ = 2905228844333046879, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989353) 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, 1244 + ... + 1877.

It is an arithmetic number, because the mean of its divisors is an integer number (248199).

2⁹⁸⁹³⁵⁷ is an apocalyptic number.

It is an amenable number.

989357 is a deficient number, since it is larger than the sum of its proper divisors (3439).

989357 is a wasteful number, since it uses less digits than its factorization.

989357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438.

The product of its digits is 68040, while the sum is 41.

The square root of 989357 is about 994.6642649658. The cubic root of 989357 is about 99.6439672445.

The spelling of 989357 in words is "nine hundred eighty-nine thousand, three hundred fifty-seven".