989701061 has 4 divisors (see below), whose sum is σ = 996343500. Its totient is φ = 983058624.

The previous prime is 989701039. The next prime is 989701081. The reversal of 989701061 is 160107989.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 624700036 + 365001025 = 24994^2 + 19105^2 .

It is a cyclic number.

It is not a de Polignac number, because 989701061 - 2⁶ = 989700997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989701001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3320996 + ... + 3321293.

It is an arithmetic number, because the mean of its divisors is an integer number (249085875).

Almost surely, 2^989701061 is an apocalyptic number.

It is an amenable number.

989701061 is a deficient number, since it is larger than the sum of its proper divisors (6642439).

989701061 is a wasteful number, since it uses less digits than its factorization.

989701061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6642438.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 989701061 is about 31459.5146338910. The cubic root of 989701061 is about 996.5551670860. Note that the first 3 decimals are identical.

The spelling of 989701061 in words is "nine hundred eighty-nine million, seven hundred one thousand, sixty-one".