99822973 has 4 divisors (see below), whose sum is σ = 99971100. Its totient is φ = 99674848.

The previous prime is 99822937. The next prime is 99823001. The reversal of 99822973 is 37922899.

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 47361924 + 52461049 = 6882^2 + 7243^2 .

It is a cyclic number.

It is not a de Polignac number, because 99822973 - 2¹⁷ = 99691901 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99822473) 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, 73048 + ... + 74401.

It is an arithmetic number, because the mean of its divisors is an integer number (24992775).

Almost surely, 2^99822973 is an apocalyptic number.

It is an amenable number.

99822973 is a deficient number, since it is larger than the sum of its proper divisors (148127).

99822973 is a wasteful number, since it uses less digits than its factorization.

99822973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148126.

The product of its digits is 489888, while the sum is 49.

The square root of 99822973 is about 9991.1447292090. The cubic root of 99822973 is about 463.8848260636.

The spelling of 99822973 in words is "ninety-nine million, eight hundred twenty-two thousand, nine hundred seventy-three".