999613429 has 2 divisors, whose sum is σ = 999613430. Its totient is φ = 999613428.

The previous prime is 999613411. The next prime is 999613451. The reversal of 999613429 is 924316999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 952031025 + 47582404 = 30855^2 + 6898^2 .

It is an emirp because it is prime and its reverse (924316999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999613429 - 2⁵ = 999613397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999613229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499806714 + 499806715.

It is an arithmetic number, because the mean of its divisors is an integer number (499806715).

Almost surely, 2^999613429 is an apocalyptic number.

It is an amenable number.

999613429 is a deficient number, since it is larger than the sum of its proper divisors (1).

999613429 is an equidigital number, since it uses as much as digits as its factorization.

999613429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 944784, while the sum is 52.

The square root of 999613429 is about 31616.6637866806. The cubic root of 999613429 is about 999.8711263923.

The spelling of 999613429 in words is "nine hundred ninety-nine million, six hundred thirteen thousand, four hundred twenty-nine".