989438341 has 8 divisors (see below), whose sum is σ = 993511064. Its totient is φ = 985374720.

The previous prime is 989438339. The next prime is 989438347. The reversal of 989438341 is 143834989.

It can be written as a sum of positive squares in 4 ways, for example, as 21316 + 989417025 = 146^2 + 31455^2 .

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

It is a 7-Lehmer number, since φ(989438341) divides (989438341-1)⁷.

It is a cyclic number.

It is not a de Polignac number, because 989438341 - 2¹ = 989438339 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989438347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284485 + ... + 287941.

It is an arithmetic number, because the mean of its divisors is an integer number (124188883).

Almost surely, 2^989438341 is an apocalyptic number.

It is an amenable number.

989438341 is a deficient number, since it is larger than the sum of its proper divisors (4072723).

989438341 is a wasteful number, since it uses less digits than its factorization.

989438341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4551.

The product of its digits is 746496, while the sum is 49.

The square root of 989438341 is about 31455.3388314289. The cubic root of 989438341 is about 996.4669794659.

The spelling of 989438341 in words is "nine hundred eighty-nine million, four hundred thirty-eight thousand, three hundred forty-one".