99900349 has 2 divisors, whose sum is σ = 99900350. Its totient is φ = 99900348.

The previous prime is 99900343. The next prime is 99900379. The reversal of 99900349 is 94300999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99900025 + 324 = 9995^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 99900349 - 2⁷ = 99900221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99900343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49950174 + 49950175.

It is an arithmetic number, because the mean of its divisors is an integer number (49950175).

Almost surely, 2^99900349 is an apocalyptic number.

It is an amenable number.

99900349 is a deficient number, since it is larger than the sum of its proper divisors (1).

99900349 is an equidigital number, since it uses as much as digits as its factorization.

99900349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 99900349 is about 9995.0162080909. The cubic root of 99900349 is about 464.0046524628.

The spelling of 99900349 in words is "ninety-nine million, nine hundred thousand, three hundred forty-nine".