986943641 has 2 divisors, whose sum is σ = 986943642. Its totient is φ = 986943640.

The previous prime is 986943623. The next prime is 986943691. The reversal of 986943641 is 146349689.

986943641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (986943691) can be obtained adding 986943641 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 982195600 + 4748041 = 31340^2 + 2179^2 .

It is a cyclic number.

It is not a de Polignac number, because 986943641 - 2⁶ = 986943577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 986943641.

It is not a weakly prime, because it can be changed into another prime (986943691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493471820 + 493471821.

It is an arithmetic number, because the mean of its divisors is an integer number (493471821).

Almost surely, 2^986943641 is an apocalyptic number.

It is an amenable number.

986943641 is a deficient number, since it is larger than the sum of its proper divisors (1).

986943641 is an equidigital number, since it uses as much as digits as its factorization.

986943641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 50.

The square root of 986943641 is about 31415.6591686375. The cubic root of 986943641 is about 995.6288007915.

The spelling of 986943641 in words is "nine hundred eighty-six million, nine hundred forty-three thousand, six hundred forty-one".