986694647 has 2 divisors, whose sum is σ = 986694648. Its totient is φ = 986694646.

The previous prime is 986694619. The next prime is 986694649. The reversal of 986694647 is 746496689.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 986694647 - 2⁸ = 986694391 is a prime.

Together with 986694649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (986694649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493347323 + 493347324.

It is an arithmetic number, because the mean of its divisors is an integer number (493347324).

Almost surely, 2^986694647 is an apocalyptic number.

986694647 is a deficient number, since it is larger than the sum of its proper divisors (1).

986694647 is an equidigital number, since it uses as much as digits as its factorization.

986694647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 59.

The square root of 986694647 is about 31411.6960223417. The cubic root of 986694647 is about 995.5450653622.

The spelling of 986694647 in words is "nine hundred eighty-six million, six hundred ninety-four thousand, six hundred forty-seven".