994967749 has 2 divisors, whose sum is σ = 994967750. Its totient is φ = 994967748.

The previous prime is 994967747. The next prime is 994967773. The reversal of 994967749 is 947769499.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 855562500 + 139405249 = 29250^2 + 11807^2 .

It is a cyclic number.

It is not a de Polignac number, because 994967749 - 2¹ = 994967747 is a prime.

Together with 994967747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (994967747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497483874 + 497483875.

It is an arithmetic number, because the mean of its divisors is an integer number (497483875).

Almost surely, 2^994967749 is an apocalyptic number.

It is an amenable number.

994967749 is a deficient number, since it is larger than the sum of its proper divisors (1).

994967749 is an equidigital number, since it uses as much as digits as its factorization.

994967749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30862944, while the sum is 64.

The square root of 994967749 is about 31543.1093743150. The cubic root of 994967749 is about 998.3197613794.

The spelling of 994967749 in words is "nine hundred ninety-four million, nine hundred sixty-seven thousand, seven hundred forty-nine".