99427073 has 4 divisors (see below), whose sum is σ = 99781188. Its totient is φ = 99072960.

The previous prime is 99427063. The next prime is 99427121. The reversal of 99427073 is 37072499.

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

It can be written as a sum of positive squares in 2 ways, for example, as 64770304 + 34656769 = 8048^2 + 5887^2 .

It is a cyclic number.

It is not a de Polignac number, because 99427073 - 2¹⁰ = 99426049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99427073.

It is not an unprimeable number, because it can be changed into a prime (99427063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176636 + ... + 177197.

It is an arithmetic number, because the mean of its divisors is an integer number (24945297).

Almost surely, 2^99427073 is an apocalyptic number.

It is an amenable number.

99427073 is a deficient number, since it is larger than the sum of its proper divisors (354115).

99427073 is a wasteful number, since it uses less digits than its factorization.

99427073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354114.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 99427073 is about 9971.3125013711. The cubic root of 99427073 is about 463.2707545638.

The spelling of 99427073 in words is "ninety-nine million, four hundred twenty-seven thousand, seventy-three".