989285 has 8 divisors (see below), whose sum is σ = 1295136. Its totient is φ = 719440.

The previous prime is 989279. The next prime is 989293. The reversal of 989285 is 582989.

It is a happy number.

989285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 989285 - 2⁸ = 989029 is a prime.

It is a super-2 number, since 2×989285² = 1957369622450, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 989285.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8939 + ... + 9048.

It is an arithmetic number, because the mean of its divisors is an integer number (161892).

2⁹⁸⁹²⁸⁵ is an apocalyptic number.

It is an amenable number.

989285 is a deficient number, since it is larger than the sum of its proper divisors (305851).

989285 is a wasteful number, since it uses less digits than its factorization.

989285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18003.

The product of its digits is 51840, while the sum is 41.

The square root of 989285 is about 994.6280711904. The cubic root of 989285 is about 99.6415500045.

The spelling of 989285 in words is "nine hundred eighty-nine thousand, two hundred eighty-five".