98619666 has 16 divisors (see below), whose sum is σ = 198660000. Its totient is φ = 32636448.

The previous prime is 98619643. The next prime is 98619667. The reversal of 98619666 is 66691689.

It is a Curzon number.

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (98619667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58291 + ... + 59958.

It is an arithmetic number, because the mean of its divisors is an integer number (12416250).

Almost surely, 2^98619666 is an apocalyptic number.

98619666 is an abundant number, since it is smaller than the sum of its proper divisors (100040334).

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

98619666 is a wasteful number, since it uses less digits than its factorization.

98619666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118393.

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

The square root of 98619666 is about 9930.7434766990. The cubic root of 98619666 is about 462.0133333233.

The spelling of 98619666 in words is "ninety-eight million, six hundred nineteen thousand, six hundred sixty-six".