99656988 has 24 divisors (see below), whose sum is σ = 233640960. Its totient is φ = 33060720.

The previous prime is 99656933. The next prime is 99656989. The reversal of 99656988 is 88965699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99656989) 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 7 ways as a sum of consecutive naturals, for example, 17148 + ... + 22211.

It is an arithmetic number, because the mean of its divisors is an integer number (9735040).

Almost surely, 2^99656988 is an apocalyptic number.

It is an amenable number.

99656988 is an abundant number, since it is smaller than the sum of its proper divisors (133983972).

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

99656988 is a wasteful number, since it uses less digits than its factorization.

99656988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39577 (or 39575 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 60.

The square root of 99656988 is about 9982.8346675681. The cubic root of 99656988 is about 463.6275685165.

The spelling of 99656988 in words is "ninety-nine million, six hundred fifty-six thousand, nine hundred eighty-eight".