99673429 has 2 divisors, whose sum is σ = 99673430. Its totient is φ = 99673428.

The previous prime is 99673403. The next prime is 99673447. The reversal of 99673429 is 92437699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97970404 + 1703025 = 9898^2 + 1305^2 .

It is an emirp because it is prime and its reverse (92437699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99673429 - 2¹¹ = 99671381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99673459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49836714 + 49836715.

It is an arithmetic number, because the mean of its divisors is an integer number (49836715).

Almost surely, 2^99673429 is an apocalyptic number.

It is an amenable number.

99673429 is a deficient number, since it is larger than the sum of its proper divisors (1).

99673429 is an equidigital number, since it uses as much as digits as its factorization.

99673429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 49.

The square root of 99673429 is about 9983.6580971105. The cubic root of 99673429 is about 463.6530629044.

The spelling of 99673429 in words is "ninety-nine million, six hundred seventy-three thousand, four hundred twenty-nine".