98161686 has 64 divisors (see below), whose sum is σ = 257372160. Its totient is φ = 27138240.

The previous prime is 98161673. The next prime is 98161699. The reversal of 98161686 is 68616189.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (98161673) and next prime (98161699).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7530 + ... + 15906.

It is an arithmetic number, because the mean of its divisors is an integer number (4021440).

Almost surely, 2^98161686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98161686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128686080).

98161686 is an abundant number, since it is smaller than the sum of its proper divisors (159210474).

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

98161686 is a wasteful number, since it uses less digits than its factorization.

98161686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8426 (or 8420 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 98161686 is about 9907.6579472648. The cubic root of 98161686 is about 461.2970419336.

The spelling of 98161686 in words is "ninety-eight million, one hundred sixty-one thousand, six hundred eighty-six".