99609998 has 8 divisors (see below), whose sum is σ = 149468592. Its totient is φ = 49787136.

The previous prime is 99609943. The next prime is 99610001. The reversal of 99609998 is 89990699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290 + ... + 14117.

It is an arithmetic number, because the mean of its divisors is an integer number (18683574).

Almost surely, 2^99609998 is an apocalyptic number.

99609998 is a deficient number, since it is larger than the sum of its proper divisors (49858594).

99609998 is a wasteful number, since it uses less digits than its factorization.

99609998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17866.

The product of its (nonzero) digits is 2834352, while the sum is 59.

The square root of 99609998 is about 9980.4808501394. The cubic root of 99609998 is about 463.5546875779.

The spelling of 99609998 in words is "ninety-nine million, six hundred nine thousand, nine hundred ninety-eight".