989433 has 6 divisors (see below), whose sum is σ = 1429194. Its totient is φ = 659616.

The previous prime is 989423. The next prime is 989441. The reversal of 989433 is 334989.

It can be written as a sum of positive squares in only one way, i.e., 710649 + 278784 = 843^2 + 528^2 .

It is not a de Polignac number, because 989433 - 2¹⁰ = 988409 is a prime.

It is a super-2 number, since 2×989433² = 1957955322978, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 989433.

It is not an unprimeable number, because it can be changed into a prime (989423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54960 + ... + 54977.

It is an arithmetic number, because the mean of its divisors is an integer number (238199).

2⁹⁸⁹⁴³³ is an apocalyptic number.

It is an amenable number.

989433 is a deficient number, since it is larger than the sum of its proper divisors (439761).

989433 is a wasteful number, since it uses less digits than its factorization.

989433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109943 (or 109940 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 989433 is about 994.7024680778. The cubic root of 989433 is about 99.6465186482.

The spelling of 989433 in words is "nine hundred eighty-nine thousand, four hundred thirty-three".