98001986 has 4 divisors (see below), whose sum is σ = 147002982. Its totient is φ = 49000992.

The previous prime is 98001983. The next prime is 98001997. The reversal of 98001986 is 68910089.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68910089 = 3229 ⋅21341.

It can be written as a sum of positive squares in only one way, i.e., 81558961 + 16443025 = 9031^2 + 4055^2 .

It is not an unprimeable number, because it can be changed into a prime (98001983) 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 as a sum of consecutive naturals, namely, 24500495 + ... + 24500498.

Almost surely, 2^98001986 is an apocalyptic number.

98001986 is a deficient number, since it is larger than the sum of its proper divisors (49000996).

98001986 is a wasteful number, since it uses less digits than its factorization.

98001986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49000995.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 98001986 is about 9899.5952442512. The cubic root of 98001986 is about 461.0467435816.

The spelling of 98001986 in words is "ninety-eight million, one thousand, nine hundred eighty-six".