986227729 has 2 divisors, whose sum is σ = 986227730. Its totient is φ = 986227728.

The previous prime is 986227717. The next prime is 986227757. The reversal of 986227729 is 927722689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 588305025 + 397922704 = 24255^2 + 19948^2 .

It is an emirp because it is prime and its reverse (927722689) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 986227729 - 2¹³ = 986219537 is a prime.

It is not a weakly prime, because it can be changed into another prime (986227709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493113864 + 493113865.

It is an arithmetic number, because the mean of its divisors is an integer number (493113865).

Almost surely, 2^986227729 is an apocalyptic number.

It is an amenable number.

986227729 is a deficient number, since it is larger than the sum of its proper divisors (1).

986227729 is an equidigital number, since it uses as much as digits as its factorization.

986227729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 52.

The square root of 986227729 is about 31404.2629112673. The cubic root of 986227729 is about 995.3880052038.

The spelling of 986227729 in words is "nine hundred eighty-six million, two hundred twenty-seven thousand, seven hundred twenty-nine".