99866029 has 2 divisors, whose sum is σ = 99866030. Its totient is φ = 99866028.

The previous prime is 99866027. The next prime is 99866047. The reversal of 99866029 is 92066899.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98604900 + 1261129 = 9930^2 + 1123^2 .

It is a cyclic number.

It is not a de Polignac number, because 99866029 - 2¹ = 99866027 is a prime.

Together with 99866027, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99866021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49933014 + 49933015.

It is an arithmetic number, because the mean of its divisors is an integer number (49933015).

Almost surely, 2^99866029 is an apocalyptic number.

It is an amenable number.

99866029 is a deficient number, since it is larger than the sum of its proper divisors (1).

99866029 is an equidigital number, since it uses as much as digits as its factorization.

99866029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 99866029 is about 9993.2992049673. The cubic root of 99866029 is about 463.9515112950.

The spelling of 99866029 in words is "ninety-nine million, eight hundred sixty-six thousand, twenty-nine".