99790241 has 2 divisors, whose sum is σ = 99790242. Its totient is φ = 99790240.

The previous prime is 99790237. The next prime is 99790253. The reversal of 99790241 is 14209799.

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., 95257600 + 4532641 = 9760^2 + 2129^2 .

It is an emirp because it is prime and its reverse (14209799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99790241 - 2² = 99790237 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99790441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49895120 + 49895121.

It is an arithmetic number, because the mean of its divisors is an integer number (49895121).

Almost surely, 2^99790241 is an apocalyptic number.

It is an amenable number.

99790241 is a deficient number, since it is larger than the sum of its proper divisors (1).

99790241 is an equidigital number, since it uses as much as digits as its factorization.

99790241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 99790241 is about 9989.5065443694. The cubic root of 99790241 is about 463.8341178363.

The spelling of 99790241 in words is "ninety-nine million, seven hundred ninety thousand, two hundred forty-one".