99010819 has 4 divisors (see below), whose sum is σ = 99057280. Its totient is φ = 98964360.

The previous prime is 99010799. The next prime is 99010823. The reversal of 99010819 is 91801099.

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

It is a cyclic number.

It is not a de Polignac number, because 99010819 - 2¹¹ = 99008771 is a prime.

It is a super-2 number, since 2×99010819² = 19606284558101522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99010889) 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 3 ways as a sum of consecutive naturals, for example, 19872 + ... + 24349.

It is an arithmetic number, because the mean of its divisors is an integer number (24764320).

Almost surely, 2^99010819 is an apocalyptic number.

99010819 is a deficient number, since it is larger than the sum of its proper divisors (46461).

99010819 is a wasteful number, since it uses less digits than its factorization.

99010819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46460.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 99010819 is about 9950.4180314196. The cubic root of 99010819 is about 462.6233519534.

The spelling of 99010819 in words is "ninety-nine million, ten thousand, eight hundred nineteen".