99662399 has 2 divisors, whose sum is σ = 99662400. Its totient is φ = 99662398.

The previous prime is 99662393. The next prime is 99662413. The reversal of 99662399 is 99326699.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99662399 - 2¹² = 99658303 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99662399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99662393) 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, 49831199 + 49831200.

It is an arithmetic number, because the mean of its divisors is an integer number (49831200).

Almost surely, 2^99662399 is an apocalyptic number.

99662399 is a deficient number, since it is larger than the sum of its proper divisors (1).

99662399 is an equidigital number, since it uses as much as digits as its factorization.

99662399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1417176, while the sum is 53.

The square root of 99662399 is about 9983.1056790961. The cubic root of 99662399 is about 463.6359594430.

The spelling of 99662399 in words is "ninety-nine million, six hundred sixty-two thousand, three hundred ninety-nine".