989378 has 8 divisors (see below), whose sum is σ = 1598268. Its totient is φ = 456624.

The previous prime is 989377. The next prime is 989381. The reversal of 989378 is 873989.

It can be written as a sum of positive squares in 2 ways, for example, as 935089 + 54289 = 967^2 + 233^2 .

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

It is not an unprimeable number, because it can be changed into a prime (989377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19001 + ... + 19052.

2⁹⁸⁹³⁷⁸ is an apocalyptic number.

989378 is a deficient number, since it is larger than the sum of its proper divisors (608890).

989378 is a wasteful number, since it uses less digits than its factorization.

989378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38068.

The product of its digits is 108864, while the sum is 44.

The square root of 989378 is about 994.6748212356. The cubic root of 989378 is about 99.6446722507.

The spelling of 989378 in words is "nine hundred eighty-nine thousand, three hundred seventy-eight".