984493651 has 2 divisors, whose sum is σ = 984493652. Its totient is φ = 984493650.

The previous prime is 984493649. The next prime is 984493661. The reversal of 984493651 is 156394489.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (156394489) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 984493651 - 2¹ = 984493649 is a prime.

Together with 984493649, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 984493595 and 984493604.

It is not a weakly prime, because it can be changed into another prime (984493661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492246825 + 492246826.

It is an arithmetic number, because the mean of its divisors is an integer number (492246826).

Almost surely, 2^984493651 is an apocalyptic number.

984493651 is a deficient number, since it is larger than the sum of its proper divisors (1).

984493651 is an equidigital number, since it uses as much as digits as its factorization.

984493651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 49.

The square root of 984493651 is about 31376.6418056490. The cubic root of 984493651 is about 994.8042681243.

The spelling of 984493651 in words is "nine hundred eighty-four million, four hundred ninety-three thousand, six hundred fifty-one".