99704219 has 4 divisors (see below), whose sum is σ = 99756144. Its totient is φ = 99652296.

The previous prime is 99704207. The next prime is 99704273. The reversal of 99704219 is 91240799.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99704219 is a prime.

It is a super-2 number, since 2×99704219² = 19881862572799922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99704279) 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 3 ways as a sum of consecutive naturals, for example, 22967 + ... + 26960.

It is an arithmetic number, because the mean of its divisors is an integer number (24939036).

Almost surely, 2^99704219 is an apocalyptic number.

99704219 is a deficient number, since it is larger than the sum of its proper divisors (51925).

99704219 is a wasteful number, since it uses less digits than its factorization.

99704219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51924.

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

The square root of 99704219 is about 9985.1999979970. The cubic root of 99704219 is about 463.7008001607.

The spelling of 99704219 in words is "ninety-nine million, seven hundred four thousand, two hundred nineteen".