999952249 has 2 divisors, whose sum is σ = 999952250. Its totient is φ = 999952248.

The previous prime is 999952231. The next prime is 999952253. The reversal of 999952249 is 942259999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 966774649 + 33177600 = 31093^2 + 5760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999952249 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 999952193 and 999952202.

It is not a weakly prime, because it can be changed into another prime (999952279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499976124 + 499976125.

It is an arithmetic number, because the mean of its divisors is an integer number (499976125).

Almost surely, 2^999952249 is an apocalyptic number.

It is an amenable number.

999952249 is a deficient number, since it is larger than the sum of its proper divisors (1).

999952249 is an equidigital number, since it uses as much as digits as its factorization.

999952249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4723920, while the sum is 58.

The square root of 999952249 is about 31622.0215830677. The cubic root of 999952249 is about 999.9840827466.

The spelling of 999952249 in words is "nine hundred ninety-nine million, nine hundred fifty-two thousand, two hundred forty-nine".