99668653 has 4 divisors (see below), whose sum is σ = 113907040. Its totient is φ = 85430268.

The previous prime is 99668629. The next prime is 99668669. The reversal of 99668653 is 35686699.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 99668653 - 2²⁵ = 66114221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99668653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99668353) 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, 7119183 + ... + 7119196.

It is an arithmetic number, because the mean of its divisors is an integer number (28476760).

Almost surely, 2^99668653 is an apocalyptic number.

It is an amenable number.

99668653 is a deficient number, since it is larger than the sum of its proper divisors (14238387).

99668653 is a wasteful number, since it uses less digits than its factorization.

99668653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14238386.

The product of its digits is 2099520, while the sum is 52.

The square root of 99668653 is about 9983.4189033617. The cubic root of 99668653 is about 463.6456572450.

The spelling of 99668653 in words is "ninety-nine million, six hundred sixty-eight thousand, six hundred fifty-three".