98611986 has 32 divisors (see below), whose sum is σ = 220163328. Its totient is φ = 29186640.

The previous prime is 98611967. The next prime is 98611991. The reversal of 98611986 is 68911689.

98611986 is a strobogrammatic number because it is the same when read upside-down.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14536 + ... + 20211.

It is an arithmetic number, because the mean of its divisors is an integer number (6880104).

Almost surely, 2^98611986 is an apocalyptic number.

98611986 is an abundant number, since it is smaller than the sum of its proper divisors (121551342).

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

98611986 is a wasteful number, since it uses less digits than its factorization.

98611986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34806.

The product of its digits is 186624, while the sum is 48.

The square root of 98611986 is about 9930.3567911732. The cubic root of 98611986 is about 462.0013399260.

The spelling of 98611986 in words is "ninety-eight million, six hundred eleven thousand, nine hundred eighty-six".