99917698 has 8 divisors (see below), whose sum is σ = 149931792. Its totient is φ = 49940436.

The previous prime is 99917693. The next prime is 99917711. The reversal of 99917698 is 89671999.

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

It is not an unprimeable number, because it can be changed into a prime (99917693) 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, 940 + ... + 14167.

It is an arithmetic number, because the mean of its divisors is an integer number (18741474).

Almost surely, 2^99917698 is an apocalyptic number.

99917698 is a deficient number, since it is larger than the sum of its proper divisors (50014094).

99917698 is a wasteful number, since it uses less digits than its factorization.

99917698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18416.

The product of its digits is 2204496, while the sum is 58.

The square root of 99917698 is about 9995.8840529490. The cubic root of 99917698 is about 464.0315110635.

It can be divided in two parts, 9991 and 7698, that added together give a square (17689 = 133²).

The spelling of 99917698 in words is "ninety-nine million, nine hundred seventeen thousand, six hundred ninety-eight".