99574229 has 2 divisors, whose sum is σ = 99574230. Its totient is φ = 99574228.

The previous prime is 99574217. The next prime is 99574249. The reversal of 99574229 is 92247599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97318225 + 2256004 = 9865^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 99574229 - 2¹⁶ = 99508693 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99574249) 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, 49787114 + 49787115.

It is an arithmetic number, because the mean of its divisors is an integer number (49787115).

Almost surely, 2^99574229 is an apocalyptic number.

It is an amenable number.

99574229 is a deficient number, since it is larger than the sum of its proper divisors (1).

99574229 is an equidigital number, since it uses as much as digits as its factorization.

99574229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The square root of 99574229 is about 9978.6887415131. The cubic root of 99574229 is about 463.4991949131.

The spelling of 99574229 in words is "ninety-nine million, five hundred seventy-four thousand, two hundred twenty-nine".