99705219 has 8 divisors (see below), whose sum is σ = 137524560. Its totient is φ = 64178016.

The previous prime is 99705209. The next prime is 99705223. The reversal of 99705219 is 91250799.

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

It is not a de Polignac number, because 99705219 - 2⁸ = 99704963 is a prime.

It is a super-2 number, since 2×99705219² = 19882261391675922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99705209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572932 + ... + 573105.

It is an arithmetic number, because the mean of its divisors is an integer number (17190570).

Almost surely, 2^99705219 is an apocalyptic number.

99705219 is a deficient number, since it is larger than the sum of its proper divisors (37819341).

99705219 is a wasteful number, since it uses less digits than its factorization.

99705219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146069.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 99705219 is about 9985.2500719812. The cubic root of 99705219 is about 463.7023504102.

The spelling of 99705219 in words is "ninety-nine million, seven hundred five thousand, two hundred nineteen".