99653907 has 4 divisors (see below), whose sum is σ = 132871880. Its totient is φ = 66435936.

The previous prime is 99653899. The next prime is 99653921. The reversal of 99653907 is 70935699.

It is a happy number.

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

It is not a de Polignac number, because 99653907 - 2³ = 99653899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99653707) 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, 16608982 + ... + 16608987.

It is an arithmetic number, because the mean of its divisors is an integer number (33217970).

Almost surely, 2^99653907 is an apocalyptic number.

99653907 is a deficient number, since it is larger than the sum of its proper divisors (33217973).

99653907 is a wasteful number, since it uses less digits than its factorization.

99653907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33217972.

The product of its (nonzero) digits is 459270, while the sum is 48.

The square root of 99653907 is about 9982.6803514888. The cubic root of 99653907 is about 463.6227906236.

The spelling of 99653907 in words is "ninety-nine million, six hundred fifty-three thousand, nine hundred seven".