986747689 has 2 divisors, whose sum is σ = 986747690. Its totient is φ = 986747688.

The previous prime is 986747681. The next prime is 986747731.

986747689 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 924464025 + 62283664 = 30405^2 + 7892^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 986747689 - 2³ = 986747681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 986747689.

It is not a weakly prime, because it can be changed into another prime (986747681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493373844 + 493373845.

It is an arithmetic number, because the mean of its divisors is an integer number (493373845).

Almost surely, 2^986747689 is an apocalyptic number.

It is an amenable number.

986747689 is a deficient number, since it is larger than the sum of its proper divisors (1).

986747689 is an equidigital number, since it uses as much as digits as its factorization.

986747689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 64.

The square root of 986747689 is about 31412.5403143394. The cubic root of 986747689 is about 995.5629043007.

The spelling of 986747689 in words is "nine hundred eighty-six million, seven hundred forty-seven thousand, six hundred eighty-nine".