99900345 has 8 divisors (see below), whose sum is σ = 159840576. Its totient is φ = 53280176.

The previous prime is 99900343. The next prime is 99900349. The reversal of 99900345 is 54300999.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99900345 - 2¹ = 99900343 is a prime.

It is a super-2 number, since 2×99900345² = 19960157862238050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99900343) 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 in 7 ways as a sum of consecutive naturals, for example, 3329997 + ... + 3330026.

It is an arithmetic number, because the mean of its divisors is an integer number (19980072).

Almost surely, 2^99900345 is an apocalyptic number.

It is an amenable number.

99900345 is a deficient number, since it is larger than the sum of its proper divisors (59940231).

99900345 is a wasteful number, since it uses less digits than its factorization.

99900345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6660031.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 99900345 is about 9995.0160079912. The cubic root of 99900345 is about 464.0046462699.

The spelling of 99900345 in words is "ninety-nine million, nine hundred thousand, three hundred forty-five".