99908073 has 10 divisors (see below), whose sum is σ = 149245514. Its totient is φ = 66605328.

The previous prime is 99908033. The next prime is 99908077. The reversal of 99908073 is 37080999.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 63872064 + 36036009 = 7992^2 + 6003^2 .

It is not a de Polignac number, because 99908073 - 2¹² = 99903977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99908077) 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 9 ways as a sum of consecutive naturals, for example, 616636 + ... + 616797.

Almost surely, 2^99908073 is an apocalyptic number.

It is an amenable number.

99908073 is a deficient number, since it is larger than the sum of its proper divisors (49337441).

99908073 is a wasteful number, since it uses less digits than its factorization.

99908073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233445 (or 1233436 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 99908073 is about 9995.4025931925. The cubic root of 99908073 is about 464.0166106445.

The spelling of 99908073 in words is "ninety-nine million, nine hundred eight thousand, seventy-three".