989434 has 8 divisors (see below), whose sum is σ = 1571508. Its totient is φ = 465600.

The previous prime is 989423. The next prime is 989441. The reversal of 989434 is 434989.

It can be written as a sum of positive squares in 2 ways, for example, as 950625 + 38809 = 975^2 + 197^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 989393 and 989402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14517 + ... + 14584.

2⁹⁸⁹⁴³⁴ is an apocalyptic number.

989434 is a deficient number, since it is larger than the sum of its proper divisors (582074).

989434 is a wasteful number, since it uses less digits than its factorization.

989434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29120.

The product of its digits is 31104, while the sum is 37.

The square root of 989434 is about 994.7029707405. The cubic root of 989434 is about 99.6465522185.

The spelling of 989434 in words is "nine hundred eighty-nine thousand, four hundred thirty-four".