999066749 has 2 divisors, whose sum is σ = 999066750. Its totient is φ = 999066748.

The previous prime is 999066737. The next prime is 999066799. The reversal of 999066749 is 947660999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 881496100 + 117570649 = 29690^2 + 10843^2 .

It is an emirp because it is prime and its reverse (947660999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999066749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999066799) 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, 499533374 + 499533375.

It is an arithmetic number, because the mean of its divisors is an integer number (499533375).

Almost surely, 2^999066749 is an apocalyptic number.

It is an amenable number.

999066749 is a deficient number, since it is larger than the sum of its proper divisors (1).

999066749 is an equidigital number, since it uses as much as digits as its factorization.

999066749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6613488, while the sum is 59.

The square root of 999066749 is about 31608.0171633717. The cubic root of 999066749 is about 999.6888195101.

The spelling of 999066749 in words is "nine hundred ninety-nine million, sixty-six thousand, seven hundred forty-nine".