99906648 has 32 divisors (see below), whose sum is σ = 253498560. Its totient is φ = 32804640.

The previous prime is 99906629. The next prime is 99906659. The reversal of 99906648 is 84660999.

It is a self number, because there is not a number n which added to its sum of digits gives 99906648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29458 + ... + 32673.

It is an arithmetic number, because the mean of its divisors is an integer number (7921830).

Almost surely, 2^99906648 is an apocalyptic number.

It is an amenable number.

99906648 is an abundant number, since it is smaller than the sum of its proper divisors (153591912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99906648 is a wasteful number, since it uses less digits than its factorization.

99906648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62207 (or 62203 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 99906648 is about 9995.3313101668. The cubic root of 99906648 is about 464.0144045271.

The spelling of 99906648 in words is "ninety-nine million, nine hundred six thousand, six hundred forty-eight".