996399149 has 2 divisors, whose sum is σ = 996399150. Its totient is φ = 996399148.

The previous prime is 996399137. The next prime is 996399163. The reversal of 996399149 is 941993699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 986274025 + 10125124 = 31405^2 + 3182^2 .

It is an emirp because it is prime and its reverse (941993699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 996399149 - 2⁴ = 996399133 is a prime.

It is a super-2 number, since 2×996399149² = 1985622528255848402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996399199) 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, 498199574 + 498199575.

It is an arithmetic number, because the mean of its divisors is an integer number (498199575).

Almost surely, 2^996399149 is an apocalyptic number.

It is an amenable number.

996399149 is a deficient number, since it is larger than the sum of its proper divisors (1).

996399149 is an equidigital number, since it uses as much as digits as its factorization.

996399149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4251528, while the sum is 59.

The square root of 996399149 is about 31565.7908027029. The cubic root of 996399149 is about 998.7982727635.

The spelling of 996399149 in words is "nine hundred ninety-six million, three hundred ninety-nine thousand, one hundred forty-nine".